Cisco Unified Communications Manager (CallManager)

Table Of Contents

Release Notes for Cisco CallManager Release 3.0(4a)

Contents

Introduction

System Requirements

Determining the Software Version

New and Changed Information

Maintenance Release 3.0(4a)

Call Forward No Answer and Call Forward Busy

PerfMon Counter Name Changes

Maintenance Release 3.0(3b)

Maintenance Release 3.0(3)

Maintenance Release 3.0(2d)

New Hardware and Software Features in Release 3.0

Distributed Call Processing

Digit Analysis Replication

Multiple Line Appearance

Route Lists and Route Groups

Address Assignments (Route Pattern)

Number Transformations

Data Driven Dial Plan

Dial Plan Report

Call Pickup and Group Call Pickup

Select Ringing State for a Phone Device

Disable Ring Per Line

Database Layer/Replication

Device Reset Control

Device Recovery

Intracluster Distributed Cisco CallManager Feature Transparency

Intercluster Distributed Cisco CallManager Feature Transparency

Distributed Cisco CallManager Scalability

Cisco CallManager Redundancy on the Cisco ICS 7750

Digit Analysis Multitenant

Digit Analysis Multilocation

Digit Analysis Toll Restriction

MGCP Support for VG200

MGCP Device Recovery

Cisco IP Phone 7960 Support

Comfort Noise

IP Voice Streaming Application

Services Management

Global Directory User Pages

Empty Terminal Capability Set

CDR Modifications

Hold Feature Modifications

E-911 Support

VG200 Hook Flash Transfer

AMIS-A Support

Bulk Administration Tool (BAT)

DtSilenceFlag Service Parameter

Modems and Faxes

End User Interface

Important Notes

Resolved Caveats

Resolved Caveats - Release 3.0(4a)

Resolved Caveats - Release 3.0(3b)

Resolved Caveats - Release 3.0(3)

Resolved Caveats - Release 3.0(2d)

Open Caveats

Open Caveats for Cisco CallManager Release 3.0(4a)

Troubleshooting

Documentation Updates

New Service Parameters

Configuring the Microsoft Telnet Daemon for Bridged Telnet

Server Name Change

Running Show Tech

Changes

Default Value Changed for SdlTraceTotalNumFiles Service Parameter

Omissions

Cisco CallManager Service Parameters

Cisco TFTP Service Parameters

Cisco Messaging Interface Service Parameters

Cisco IP Voice Media Streaming Service Parameters

Cisco Enterprise Service Parameters

Errors

Incorrect Name of MwiSearchSpace Service Parameter

Incorrect Definition for HoldType and ToneOnHoldTime

Service and Support

Obtaining Documentation

World Wide Web

Documentation CD-ROM

Ordering Documentation

Obtaining Technical Assistance

Cisco Connection Online

Technical Assistance Center

Documentation Feedback

Release Notes for Cisco CallManager Release 3.0(4a)

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November 17, 2000

These release notes describe the new features and caveats for Cisco CallManager Release 3.0(4a). Use these release notes in conjunction with the Installing Cisco CallManager Release 3.0 on the Cisco Media Convergence Server document, located on Cisco Connection Online (CCO), and the Cisco Documentation CD-ROM. The Installing Cisco CallManager Release 3.0 on the Cisco Media Convergence Server document is also packaged with your CDs or convergence server.

The latest software upgrades and release notes for Cisco CallManager 3.0(4a) are available on Cisco Connection Online (CCO) at

http://www.cisco.com/kobayashi/sw-center/internet/callmgr/callmgr.html

Contents

These release notes discuss the following topics:

•Introduction

•System Requirements

•Determining the Software Version

•New and Changed Information

•Important Notes

•Resolved Caveats

•Open Caveats

•Troubleshooting

•Documentation Updates

•Service and Support

•Obtaining Documentation

•Obtaining Technical Assistance

Introduction

Cisco CallManager, a network business communication system, provides high-quality telephony over IP networks. Cisco CallManager enables the conversion of conventional, proprietary, circuit-switched PBXs to multiservice, open LAN systems.

System Requirements

Cisco CallManager Release 3.0 must be installed and configured on a Cisco Media Convergence Server. For system hardware component information and system requirements, refer to Installing Cisco CallManager Release 3.0 on the Cisco Media Convergence Server.

Determining the Software Version

To determine the software version of Cisco CallManager 3.0(4a), open Cisco CallManager Administration; then click Details on the main Cisco CallManager Administration page. The following information displays:

•Cisco CallManager System version

•Cisco CallManager Administration version

•Database information and database DLL versions

New and Changed Information

Maintenance Release 3.0(4a)

Cisco CallManager Release 3.0(4a) is a maintenance release. No new features have been added. Refer to the behavioral changes below and the "Resolved Caveats" section on page 20 for more information.

Call Forward No Answer and Call Forward Busy

When the administrator sets a call forward in the Web Administrator, Call Search Space must also be set. The value set in the Call Search Space by the administrator overrides any settings on the device. If no value is set, then the null partition will be assumed.

PerfMon Counter Name Changes

Two PerfMon counters are assigned new names and function differently:

•"RegisteredPhones" has changed to "RegisteredHardwarePhones"—The RegisteredHardwarePhones counter indicates the number of hardware phones, which includes the Cisco IP 7900 Family, Cisco 30 VIP, and Cisco 12 SP+, that are currently registered with a specific Cisco CallManager.

•"LicenseAvailableStation" has been changed to "RegisteredOtherStationDevices"—The RegisteredOtherStationDevices counter represents the number of devices registered with a particular Cisco CallManager that uses the SCCP protocol and are not hardware phones.

Maintenance Release 3.0(3b)

Cisco CallManager Release 3.0(3b) is a maintenance release. No new features have been added. Refer to the "Resolved Caveats" section on page 20 for more information.

Maintenance Release 3.0(3)

Cisco CallManager Release 3.0(3) is a maintenance release. No new features have been added. Refer to the "Resolved Caveats" section for more information.

Maintenance Release 3.0(2d)

Cisco CallManager Release 3.0(2d) is a maintenance release that addresses Cisco Media Convergence Server installation issues and resolves other high-priority caveats. No new features have been added. Refer to the "Resolved Caveats" section for more information.

New Hardware and Software Features in Release 3.0

The following sections contain new and changed hardware and software features in Release 3.0 of Cisco CallManager.

Distributed Call Processing

Cisco CallManager (Release 3.0 and later) provides the capability for distributed call processing. With this feature, you can distribute the call processing load of your system across multiple Cisco CallManagers in a cluster. This feature allows for redundancy, feature transparency, and scalability in a distributed environment.

To support this functionality, a new distributed, replicated database layer has been added to the Cisco CallManager system. This layer allows for the transparent replication of configuration information across the coordinating Cisco CallManagers. The layer manages database consistency and recoverability. A single web interface to the database for the entire system simplifies configuration.

Digit Analysis Replication

Cisco CallManager uses digit analysis to collect, parse, and translate dialed numbers to destination device IP addresses. In Cisco CallManager Release 3.0 and later, the digit analysis function is distributed across all Cisco CallManager servers in a cluster. This distribution allows scalability, load balancing, and redundancy across the cluster.

Multiple Line Appearance

Cisco CallManager supports distributed multiple line appearance that allows multiple phones attached to multiple Cisco CallManagers to share one directory number (DN).

Route Lists and Route Groups

Release 3.0 introduces multiple Cisco CallManager nodes in a system. Access devices (gateways) may be registered in any of the nodes of the system but must still be reachable using the configured Route Plan. Route Lists (which were called Route Points in Cisco CallManager Release 2.4 and earlier) and Route Groups are configured in the same manner as in Cisco CallManager Release 2.4 and earlier, with the same associations.

Address Assignments (Route Pattern)

This feature allows addresses of devices and virtual endpoints to be specified using a format that allows easy assignment of a range of matching values. This allows ranges of addresses to be easily routed or blocked. New to Release 3.0 is the ability to associate a route pattern to a device through partitions and calling search spaces.

Number Transformations

This new feature allows both called and calling numbers to be modified by truncation, replacement of individual digits, discarding named sub-strings (called number only), or by prepending or appending digits before digit analysis.

Data Driven Dial Plan

The new Dial Plan Wizard enables you to create a dial plan quickly and easily. Also, pre-configured, pre-tested, country-specific dial plans may be created and substituted for the NANP files.

Dial Plan Report

A new Dial Plan Report allows you to see the dial plan configuration at a glance. For each route partition, it lists the call park numbers, call pickup numbers, and conference numbers associated with the partition. For each route pattern, it shows the usage, route list, route group, device, and port numbers associated with the route pattern.

Call Pickup and Group Call Pickup

Cisco CallManager Release 3.0 allows configuring two types of call pickup:

•Call Pickup allows users to pick up incoming calls within their own group. The appropriate call pickup group number is dialed automatically when a user activates this feature.

•Group Call Pickup allows users to pick up incoming calls within their own group or in other groups. Users must dial the appropriate call pickup group number when using this feature.

Select Ringing State for a Phone Device

This new feature allows ringing to be either enabled or disabled on any Cisco IP phone in the database. If ringing is enabled, an incoming call is presented on the phone through the display and/or lights as appropriate for that particular device, and by ringing the phone. If ringing is disabled, an incoming call is presented on the phone through the display and/or lights as appropriate for that particular device, but the phone does not ring audibly.

Disable Ring Per Line

If a DN appears on multiple phones, the database can be set to control which phone will ring or which will just flash, indicating that the phone is ringing, on a phone-by-phone basis.

Database Layer/Replication

The database layer provides an abstraction layer between Cisco CallManager and supporting applications. The abstraction layer provides for single-point system configuration while hiding automated, underlying data store replication.

Device Reset Control

This release of Cisco CallManager significantly reduces the number of database changes that require a Cisco CallManager restart in order to take effect.

Device Recovery

This section applies to Cisco CallManager through Media Gateway Control Protocol (MGCP), as well as Cisco CallManager to Cisco CallManager connections. Each Cisco CallManager device uses the steps in the following list to connect or reconnect to Cisco CallManagers:

•A configuration component provides a list of Cisco CallManagers for the device to use. The maximum number of Cisco CallManagers on the redundancy list is three.

•A TCP connection to two Cisco CallManagers in the list is maintained. Keep-alive messages are sent to both the active and the standby Cisco CallManager.

•If the active Cisco CallManager fails, an IP phone to IP phone call stays active if both phones are on the same Cisco CallManager. If the two IP phones are on different Cisco CallManagers, the call is dropped. IP phone to a gateway calls are also dropped regardless of which Cisco CallManagers the devices are registered. As soon as the IP phone to IP phone call ends, the phones register with their standby Cisco CallManager. This backup is only temporary, until the primary Cisco CallManager is restored.

•When keep-alive messages fail to the active Cisco CallManager, the device attempts to register with the standby Cisco CallManager. The device attempts to keep two TCP connections open and always tries to re-connect to the highest priority, available Cisco CallManager.

•If a registered device is not registered with the primary, available Cisco CallManager, and no calls are active, the device follows the list starting with the first Cisco CallManager on the list and attempts to re-make a TCP connection. Upon a successful connection, the device de-registers with the current active Cisco CallManager and registers with the new Cisco CallManager.

Intracluster Distributed Cisco CallManager Feature Transparency

The intracluster feature transparency provided in Cisco CallManager Release 3.0 allows features such as device display management, device lamp management, media management, call hold and transfer capabilities, call park and pickup capabilities, distributed dial plan, and shared route plan (in the form of partitions and calling search spaces) to be configured and shared across all Cisco CallManagers within a cluster.

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Note Intra-cluster communication does not require MTP.

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Intercluster Distributed Cisco CallManager Feature Transparency

Clusters of Cisco CallManagers interconnect using H.323 protocol. A given cluster views another cluster as another H.323 device. When configuring one cluster to communicate with another, the configuration database has an H.225 device configured that points to one of the Cisco CallManagers in the remote cluster. The dial plan structure associates the remote cluster's E.164 address range to the H.225 device and signals the remote cluster just as it would an H.323 gateway. New to Release 3.0 are minor bug fixes and support for intercluster transfer, hold, and conferencing through the H.323 empty capabilities set.

Distributed Cisco CallManager Scalability

Beginning with Release 3.0, multiple Cisco CallManagers can be supported per configuration database. This feature allows load distribution for registered devices, call processing, and other functions across all Cisco CallManager servers in a cluster.

Six Cisco CallManagers can reside in a Cisco CallManager cluster. A Cisco CallManager cluster can accommodate a maximum of 10,000 users in a cluster. A single Cisco CallManager can handle 2,500 phones. When multiple Cisco CallManagers exist in a cluster, the number of IP phones assigned to each Cisco CallManager in a normal state must be such that they can absorb the IP phones from a failed Cisco CallManager, so the 2,500 phone limit on any Cisco CallManager is not exceeded.

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Note For redundancy purposes, you could have a Cisco CallManager that only serves as a backup Cisco CallManager and, during normal operations, would have no registered phones. You can also install the Publisher database and TFTP servers on standalone platforms if desired.

For the most current information about Cisco IP telephony system design guidelines, refer to the Voice Product Documentation page on Cisco Connection Online, located at http://www.cisco.com/univercd/cc/td/doc/product/voice/

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Cisco CallManager Redundancy on the Cisco ICS 7750

The Cisco ICS 7750 handles Cisco CallManager redundancy differently than it is handled in a clustered environment. Only one instance of Cisco CallManager is active at any time on the Cisco ICS 7750. When a redundant System Processing Engine (SPE) runs a secondary instance of Cisco CallManager, the secondary instance is never active unless the primary Cisco CallManager fails. If a failover occurs, the secondary Cisco CallManager becomes active and takes over all call processing and Cisco CallManager database functions. Because only one instance of Cisco CallManager is active on the Cisco ICS 7750, load balancing is not available, and each Cisco ICS 7750 must be administered separately. For more information about implementing and configuring Cisco CallManager on the Cisco ICS 7750, refer to the Cisco ICS 7750 documentation.

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Note The Cisco ICS 7750 does not support Cisco CallManager clusters.

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Digit Analysis Multitenant

Through partitions, the Cisco CallManager can support multiple instances of the same DN at a single site that are treated as independently reachable DNs. Using translation patterns, inbound calls to different direct inward dialing (DID) numbers with common subscriber line identifiers (extensions) can be configured.

Digit Analysis Multilocation

The Cisco CallManager can support routing for devices that are in different geographical regions, of which belong to different area codes within the North American Numbering Plan (NANP). You can configure your dial plan to bypass the public network when feasible and also to fall back to long distance routes when WAN or Intranet is unavailable.

Digit Analysis Toll Restriction

Cisco CallManager can allow or prohibit types of calls based on the class of the individual device or DN.

MGCP Support for VG200

Cisco CallManager is more tightly integrated with the VG200 series of gateways through Media Gateway Control Protocol (MGCP). MGCP provides interworking between Cisco CallManager and VG200 gateways. The Cisco CallManager can control analog interfaces (FXS and FXO) directly.

MGCP Listen Port

MGCP messages are transmitted over TCP. The MGCP listen port represents the Cisco CallManager TCP listen port. The default for this port should be set to 2427.

MGCP Keep-alive Port

The VG200 gateways use TCP as a keep-alive mechanism with Cisco CallManagers. Each gateway can be configured with one active Cisco CallManager and up to two backup Cisco CallManagers. One TCP keep-alive connection exists between a gateway and an active or backup Cisco CallManager. The MGCP keep-alive port represents the Cisco CallManager TCP server port used for this keep-alive mechanism. The default for this port should be set to 2428.

MGCP Device Recovery

Cisco CallManager health monitoring is the responsibility of the gateway. Inter Cisco CallManager and gateway keep-alives track the health condition of the controlling Cisco CallManager. Once the gateway detects an outage of the primary Cisco CallManager, it rehomes to the next highest priority Cisco CallManager.

Cisco IP Phone 7960 Support

The Cisco IP Phone 7960 uses the Skinny Station protocol with additional messages as required to support the new functionality of the Cisco IP Phone 7960. The Cisco CallManager controls the display on the Cisco IP Phone 7960 indirectly, by providing call and state information to the phone. The phone display processing itself is stateless. The Cisco IP Phone 7960 supports the G.711 u-law and a-law and the G.729, G.729B codecs.

Comfort Noise

The Cisco IP Phone 7960 supports comfort noise. When Voice Activity Detection (VAD) is enabled, the Cisco IP Phone 7960 generates a low-level white noise hiss to simulate the background circuit noise users experience on non-IP connections. Generated comfort noise is only heard on the handset of the station generating the noise; it is not transmitted to the station at the other end of the call. If VAD is disabled, the Cisco IP Phone 7960 provides a continuously streaming, end-to-end connection. VAD is enabled by default.

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Caution If VAD is disabled on a network that exhibits a significant amount of jitter (for example, greater than 100 milliseconds per second), latency becomes noticeable to the user in the forms of delay and packet loss. Also, if the codec clocks are out of sync among the devices participating in the call, latency increases for the duration of the call. For example, if the codec clock at the transmitting end is 100 parts per million faster than the codec clock at the receiving end, latency increases to one-half second over the course of a one hour connection (at 8 kHz).

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Either information contained in Silence Information Description (SID) frames or calculations performed on previous information packets determines the comfort noise level. If a call is made from one Cisco IP Phone 7960 to another Cisco IP Phone 7960, the transmitting device sends SID frames that enable the comfort noise generator on the receiving device to generate the proper level of comfort noise. If a call is made between a Cisco IP Phone 7960 and a device that does not send SID frames, the Cisco IP Phone 7960 calculates and generates the proper comfort noise level based on the background noise of previous information packets.

IP Voice Streaming Application

The IP Voice Streaming Application (Media Application) combines the Conference Bridge and the Media Termination Point (MTP) components that were in the previous versions of the Cisco CallManager. The Media Application comprises two parts: a Windows NT service and Windows NT kernel mode driver. The Windows NT service is responsible for registering with the Cisco CallManager and handling Device Recovery. The kernel driver processes and controls the voice data packets.

Services Management

Software processing services for the Cisco IP Telephony Solutions for the Enterprise are Cisco CallManager, TFTP Server, Cisco Messaging Interface (CMI), and IP Streaming Application (replaces the previously separate applications for Conference Bridge and MTP). Each of the processing elements is managed consistently using well-known Windows NT system administration tools.

Service Parameters

Parametric value adjustment controls the behavior of system services. In Cisco CallManager Release 3.0, the interface to these settings has been consolidated into two Cisco CallManager Administration web pages. These parameters can now be obtained from the database. In earlier versions of Cisco CallManager, these settings were adjusted in .ini files or the Registry, or presented in application configuration dialogs.

Enterprise Parameters

This feature provides system-wide parametric value adjustment for all services within the enterprise.

Global Directory User Pages

In Release 3.0, an embedded Directory (instead of the relational database) stores user data (for example, information such as name and DN). Access the information in this directory by a variety of applications. This release provides password-protected user access to speed dial and Call Forward All numbers.

Empty Terminal Capability Set

This feature allows the start and stop (re-direct) of streaming on an H.323 device without using MTP. This allows the use of supplementary services without losing the call or voice stream.

Empty Capabilities set, a technique used in H.323v2, allows the Cisco CallManager to instruct an H.323 gateway to transfer a call to a new endpoint in mid-call. This typically occurs upon no answer or if the IP phone user presses the transfer button.

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Note The minimum IOS release required for Empty Terminal Capability set is 12.1(3)T.

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CDR Modifications

Even when there are two or more Cisco CallManagers in a cluster, CDR records are written to a common database store. There may be more than one record logged per call.

Hold Feature Modifications

Table 1 contains the hold feature modifications with Release 3.0:

Table 1 Hold Feature Modifications 

Scenarios	Initial State (1st call ----- 2nd call)	Line Button Pressed	Final State (1st call ----- 2nd call)
1	OnHook ----- OnHook	Pressed	Dial Tone ----- OnHook
2	Connected ----- OnHook	Pressed	Hold ----- Dial Tone
3	Hold ----- OnHook	Pressed	Connected ----- OnHook
4	Connected ----- Hold	Pressed	Hold ----- Connected
5	Hold ----- Hold	Pressed	Connected ----- Hold
6	Ring Out/Dial Tone ----- OnHook	Pressed	OnHook ----- OnHook
7	Ring Out/Dial Tone ----- Hold	Pressed	OnHook ----- Connected
8	Ring In ----- OnHook	Pressed	Connected ----- OnHook
9	Ring In ----- Hold	Pressed	Connected ----- Hold
10	Ring In ----- Connected	Pressed	Connected ----- Hold
11	Connected ----- OnHook	Pressed (Another Line)	Hold ----- OnHook
12	Ring Out ----- OnHook	Pressed (Another Line)	OnHook ----- OnHook
13	Ring In ----- OnHook	Pressed (Another Line)	Ring In ----- OnHook
14	Connected ----- Hold	Pressed (Another Line)	Hold ----- Hold

E-911 Support

The Cisco CallManager supports delivering the ANI (Automatic Number Identification) through an H.323 interface to the PSTN using two methods: PRI/ISDN trunks and third-party CAMA (Centralized Automated Message Accounting) gateways.

VG200 Hook Flash Transfer

Cisco CallManager Release 3.0 provides the ability to initiate a hook-flash blind transfer from POTS devices connected to any VG200 FXS port that is controlled by Cisco CallManager through MGCP.

AMIS-A Support

AMIS-A (Audio Messaging Interface Specification-Analog) support allows VoIP devices to exchange AMIS-A Dual Tone Multifrequency (DTMF) tones (A, B, C, and D) with the Cisco CallManager, in an out of band signal. The purpose of AMIS-A support is to facilitate Cisco uOne voice mail message exchange and feature transparency with legacy voice mail systems.

AMIS-A DTMF tones (A, B, C, and D) are transported in two different schemes. On the IP side, the tones are detected and generated in an out of band signaling format, whereas on the destination side of the gateways, the tones are detected and generated inband along with the voice path.

The main role of Cisco CallManager is to make sure that DTMF digits received from the sending device are correctly mapped to the corresponding signal format (or API) of the terminating device.

The following existing APIs are impacted to include the AMIS-A DTMF tones (A, B, C, and D):

•Skinny Station Protocol—StationKeyPadButton and StationOutputKeyPadButton

•Skinny Gateway Protocol—GatewayToDeviceReportDigit, DeviceToGatewayPlayTone, and Q.931 and Information message (for analog access gateway).

•H323 Protocol—H245 User Input Indication (h245-signal)

•MGCP Protocol—NTFY and RQNT

Bulk Administration Tool (BAT)

The Bulk Administration Tool (BAT), a plug-in application to the Cisco CallManager, enables you to add up to 10,000 phones and users to the Cisco CallManager application. Using BAT, you can also perform bulk modifications to phones and delete several phones at one time. Launch BAT from the Cisco CallManager Administration main window by selecting Application and click on BAT. For more information, refer to the Configuring the Bulk Administration Tool (BAT) document (OL-4086-01).

DtSilenceFlag Service Parameter

The DtSilenceFlag service parameter controls whether silence is sent while a caller waits for the phone to be answered at the other end. By default, the DtSilenceFlag service parameter is set to False (disabled). When this parameter is set to False, the audio stream is sent on call proceeding instead of waiting for a connect from the other end. When this parameter is set to True, silence is sent until a connect is received from the phone at the other end.

One side effect occurs when the DtSilenceFlag parameter is set to 0 (disabled). When the DtSilenceFlag parameter is disabled and you are calling an analog phone, you may hear loopback (echo) of your audio until the phone on the other end is answered.

To eliminate this echo, you can manually add the DtSilenceFlag service parameter to the list of CallManager service parameters for each Cisco CallManager and set its value to T (enabled). The DtSilenceFlag service parameter does not automatically appear in the list of Cisco CallManager service parameters.

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Caution Setting the DtSilenceFlag service parameter to T can result in one-way audio on 911 calls depending on the local carrier's configuration of the Central Office switch. The problem will only occur if the 911 switch fails to send a connect. If the 911 switch fails to send a connect, the calling phone continues to send silence, and the audio stream from the calling phone is never sent.

Therefore, Cisco strongly recommends that you schedule a test 911 call with your 911 service provider to verify that this problem does not occur. The test scenario should include the following steps:

1. Schedule a test call with your 911 service provider during off-peak hours.
2. Make sure that the test call will be routed over a Cisco Access Digital Trunk Gateway or a Catalyst 6000 T1/E1 8 Port Voice Service Module.
3. Enable the DtSilenceFlag parameter.
4. Make the 911 call.
5. If the 911 operator can hear you, the test passed, and you can leave the DtSilence setting enabled. If not, disable it immediately.

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Perform the following steps only if you wish to enable the DtSilenceFlag service parameter:

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Step 1 Open Cisco CallManager Administration.

Step 2 Select Service > Service Parameters

Step 3 Select Cisco CallManager from the list of Configured Services.

Step 4 Enter DtSilenceFlag in the Param field. The service parameters are case-sensitive; ensure you enter it exactly as it appears.

Step 5 Choose Boolean from the Type drop-down list box.

Step 6 Choose T from the Value drop-down list box to set it to True (enabled).

Step 7 Click Update.

The DtSilenceFlag service parameter is now added to the list of service parameters, and its value is set to T (enabled).

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Modems and Faxes

The following list shows the modems and faxes that are either supported or not in Release 3.0:

•g.723.1 fax between as/at/dt gateways = not supported

•g.711 fax between as/at/dt gateways = not supported

•g.729 fax-relay between IOS gateways = supported

•g.711 fax-relay between IOS gateways = supported

•g.729 fax-relay between cat6k gateways = supported

•g.711 fax passthrough between cat6k gateways = supported

•g.711 modem passthrough between cat6k gateways = supported

End User Interface

The end user interface for Cisco CallManager Release 3.0 database administration has changed. The new interface provides a system page divided into more precise categories, more links from one page to another, and faster search engines for devices (phones, gateways, etc.).

The main menu of the Cisco CallManager Administration user interface includes the following entries:

•System

•Route Plan

•Service

•Feature

•Device

•User

•Application

•Help

Some configuration screens contain data that are associated with a particular Cisco CallManager. A drop-down menu with all Cisco CallManager names displays. To see the data associated with a particular Cisco CallManager, choose the Cisco CallManager from the drop-down list box. Data displays accordingly.

The following sections contain the grouping of the different menu categories for the Cisco CallManager Database Administration.

System

The System category includes any system-related configurations that set the system's behaviors and options. It includes the following configurations:

•Server—Any machine that runs the Cisco CallManager and its application must be added in the Server Configuration page. The installation program automatically adds an entry on this page for the machine on which the Cisco CallManager is installed. Ensure there is a unique DNS host name or IP address is needed for each server.

•Cisco CallManager—This configuration allows you to define Cisco CallManagers in the system. Each server defined in the system (under Server Configuration) can have only one Cisco CallManager running on it. Therefore, you must define the server on which the Cisco CallManager resides before defining the Cisco CallManager. Every system, must have one primary Cisco CallManager. You can also configure the auto-registration and port settings for the Cisco CallManager.

•Cisco CallManager Group—This configuration page allows you to define groups of Cisco CallManagers. Only one Cisco CallManager Group in the system can be the default Cisco CallManager used by Trivial File Transfer Protocol (TFTP). A Cisco CallManager Group can have up to three Cisco CallManagers in a group.

•Date/Time Group—The Date/Time Group configuration page allows you to add, update, and delete Date/Time groups. Each group contains time zone and date and time format preferences. Ensure at least one Date/Time group in the system.

•Device Defaults—For each Cisco CallManager, this is a load ID, keypad template, and device pool associated with each model type. When a device is created in the system, the system can automatically identify the appropriate load ID (if applicable), keypad template (if applicable), and device pool for the device based on the Cisco CallManager to which it is registered. Based on each Cisco CallManager, you can view this configuration page.

•Region— Cisco CallManager can use the Regions feature in Data Administration to automatically select the type of call compression used between devices that are assigned to different (or the same) regions. The configuration pages allow you to define a region and set the type of compression within the region and between the new region and all existing regions.

•Device Pool—All devices in the Cisco CallManager system associate with a device pool. A device pool contains the region, Date/Time group, Cisco CallManager Group, and calling search space for auto-registration. You can create different device pools for devices in different regions, time zones for each Cisco CallManager Group, and calling search space combinations.

•Enterprise Parameters—This configuration page allows you to set parameter values for firmware load of all device types, LDAP settings, and Cisco IP Phone 7960-related settings in the system.

•Location—This configuration page allows you to define logical locations in the system and define bandwidth settings for the location.

Route Plan

This category allows you to configure route plans, partitions, and so on. It includes the following menu items:

•Partition—A partition is a collection of route patterns or call pickup group numbers. You can create route partitions and view a list of patterns and numbers associated with a specific partition.

•Calling Search Space—A Calling Search Space contains a list of partitions. Each partition has a list of DNs that a device can call. When a device is assigned to a calling search space, this device can call any number that is contained in its calling search space partition list. You can modify the ordering of partitions in a calling search space.

•Route Filter—A route filter allows you to control which dial patterns are routed or blocked. Only North American Numbering Plan (NANP) patterns can use tags associated with the route filters. If other numbering plans need to be supported, the database requires modification.

•Route Group—A route group allows you to order a list of gateways and ports for outgoing trunk preference. Devices that can belong to a route group are Analog Access ports, Digital Access PRI, Digital Access T1, and H.323 (network side) devices. All devices in a route group must have the same route pattern.

•Route List—A route list allows you to specify the order in which route groups are used.

•Route Pattern—You define the route patterns for the Cisco CallManager system. The Cisco CallManager uses the route patterns to route internal and outgoing calls.

•Translation Pattern—You define the translation patterns for the Cisco CallManager system.

•External Route Plan Wizard—The route plan wizard guides you through a number of configuration pages to configure the route plan. It creates route plans for NANP patterns only.

•Route Plan Report—Lists all the call park, call pickup, conference, route pattern, and translation patterns defined in the system. You select the pattern or DN, and the corresponding configuration page is shown. Since this page can potentially show a long list of records, we recommend viewing only 50 records at a time. You can choose to view all items by clicking on the All button.

Service

The Service category includes any applications that are add-on components:

•Cisco Messaging Interface—This interface allows you to configure trace and command line parameter settings for any server and is most commonly used to interface via SMDI to a third-party voice mail system.

•Cisco TFTP—This configuration page allows you to configure Trivial File Transfer Protocol (TFTP) service parameters. The TFTP service must be installed on a server defined in the Server Configuration page.

•Conference Bridge—This configuration allows you to define software and hardware conference bridge solutions, as well as Meet-Me numbers/patterns in the system. The initial page shows the Conference Bridge Configuration page. To navigate to other conference bridge-related configuration pages, select the links in the upper, right corner. To set up conference bridge, you must define either a conference bridge software or hardware type. The hardware type supports more capabilities than the software type.

–Conference Bridge Parameters—Use these parameters to set the maximum number of users in one ad hoc conference and the maximum number of users in one Meet-Me conference using Unicast for each Cisco CallManager. You must select the device pool, and the item list shows the Cisco CallManager belonging to the selected device pool.

–Meet-Me Number/Pattern—This capability allows you to configure the Meet-Me numbers and ranges for conference bridge calls.

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Note You cannot have both hardware and software conference bridge or MTP devices on the same Cisco CallManager. If both exist, the Cisco CallManager will disable the software version.

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•Media Termination Point—This component allows you to configure the Media Termination Point (MTP) settings.

•Service Parameters—The configuration page allows you to configure settings for the services installed in the system.When a server is selected in the item list, the configuration page shows all the services that are installed on the selected server. You can select a service of the selected server and configure the service parameter settings. A server must be defined in the Server Configuration page, and the services must be installed from the Install Plugins page.

•Trace—This application allows you to configure trace settings for the services installed in the system. You can display all configured services that are installed on the selected server by selecting a server in the item list. You can select a service from the Configured Services drop-down list box and configure the trace settings for the selected service. A server must be defined in the Server Configuration page and the services must be installed from the Install Plugins page.

•Transcoder—This application allows you to configure transcoder devices.

•Control Center—This application allows you to stop and start any services on a selected server.

Feature

The Feature category contains configurations to add phone features and feature-related parameters to the system. It includes the following configurations:

•Call Park—This configuration page allows you to specify call a park number or range in the system. Each partition has its own call park number/range.

•Call Pickup—This configuration page allows you to specify a call pickup number or range in the system. Each partition has its own call pickup number or range.

Device

The Device category contains configuration pages to configure devices (phones, gateways, and so on.) for the Cisco CallManager. It includes the following configurations:

•Add a New Device—This page replaces the Device Wizard in Release 2.4. You can add a gateway, MGCP gateway, phone, or Cisco uOne port from this configuration page. Based on the device type selected, the corresponding configuration page displays. Complete the information and click the Insert button to add the device.

•Cisco uOne Port—The Cisco Unified Open Network Exchange (uOne) optional software, available as part of Cisco IP Telephony Solutions, provides voice messaging capability to users when they are unavailable to answer calls. This page enables administrators to add, update, and delete Cisco uOne ports in the Cisco CallManager database.

For more information about configuring Cisco CallManager with Cisco uOne, refer to uOne Installation and Configuration, Corporate Edition 4.1E for CallManager 3.0 (OL-0489-01) and other documenting and online help included Cisco uOne.

•Gateway—In Release 3.0, the Gateway section of the user interface includes all gateways, including H.323 devices. Use specific pages to configure different types of gateways. The overall structure of the Gateways user interface is similar to the new Phone interface.

–Selecting Gateways—Release 3.0 replaces the method of selecting gateways (listing all gateways in a separate menu frame) from Release 2.4, has been replaced with a basic lookup function. The lookup allows you to search for gateways by the following categories: device name, description, DN, calling search space, or device pool. For each category, you can specify whether the content of the selected category begins with specific letters, contains specific letters, ends with specific letters, matches specific letters, contains no empty strings, or contains empty strings. The results display in a list of devices from which you can select.

–Configuring Gateways—You can select a device from the list of devices that the lookup gives you, and click a link or button to show a detailed view of the device in a secondary window. Any information that can be modified displays with a form element, so that it can be updated immediately. The only exceptions are the port, span, and trunk configuration details, which are not all shown at once. Instead, a summary of the ports is shown with links to edit the port details (for example, for an Analog Access device, a list of ports that are configured and each port's type, Loop Start, POTS, and so on.). The actual look and feel of the Gateway configuration pages are similar to what is shown for Phones and Users.

–Adding Gateways—The menu for Gateways includes a New Gateway device option. Clicking the link takes you to the Add a New Gateway page, where you can add a new gateway.

–Deleting Gateways—The interface provides a toolbar button in the configuration page for deleting the current device. A confirmation prompt asks whether you are sure and runs the delete script if you respond with yes. If you respond with no, you are returned to the configuration page, and no changes are made.

•MGCP—Due to the complexity of the MGCP gateways, the MGCP configuration is separated from the other gateway configurations.

•Phone—Release 3.0, limits the phone list to devices that can be classed appropriately as phones; that is, end user terminal devices. This includes the existing Cisco Phones and the new Cisco IP Phone 7960. Also included in this category is the H.323 Client (for example, NetMeeting), which is used as a phone.

•Phone Button Template—This template allows you to select a phone button template based on an existing phone template, or to create a new button layout.

User

The User category contains configuration pages that allow you to display and maintain information about users on the network. This category includes the following configurations:

•Add a New User—This configuration allows you to complete information for specific users and associate devices with those users.

•Global Directory—This configuration allows you to use a basic or advanced search to locate users. The Global Directory contains every user within a Cisco CallManager directory. The Cisco CallManager directory is a Lightweight Directory Access Protocol (LDAP) directory that imports device and extension information from the database. Its primary purpose is to maintain the associations of devices with users.

Application

The Application menu lists all plug-in applications. Once the application is installed, the application name displays under the application menu.

Help

The Help menu includes the following categories: Contents and Index, For this Page, and About Cisco CallManager.

•Contents and Index—This window shows an online documentation page. The documentation displayed here is not context-sensitive. It displays the top-level topics of the Cisco CallManager Administration Guide.

•For this Page (context-sensitive help)—All the Cisco CallManager Administration Guide pages include context-sensitive online documentation. When you click on this menu item, the documentation related to the selected configuration page displays in a separate window.

•About Cisco CallManager—This menu displays general information about Cisco CallManager. When the Details button is clicked, a list box shows the Cisco CallManager System version number (which is the Installation version), Cisco CallManager Administration version number, database information, and database dynamic link library (DLL) version numbers.

Important Notes

You should perform regular system backups as described in the section "Performing Backup and Restore Procedures" of the Installing Cisco CallManager Release 3.0 on the Cisco Media Convergence Server document.

Resolved Caveats

Resolved Caveats - Release 3.0(4a)

Table 2 Cisco CallManager 3.0(4a) Resolved Caveats

DDTS Number	Summary	Explanation
CSCds72728	The wrong version number appeared in the Cisco CallManager administration page.	The software was updated so that the correct version number now appears when you click on Details from the Cisco CallManager Administration page.
CSCdr49092	The dialing plan script incorrectly blocks n11 office codes.	An NANP file caused the software to reject n11 office codes when entered into the system. As a result, the Cisco CallManager software was upgraded to allow those digits to be dialed.
CSCds23080	Cisco CallManager crashes due to SNMP code failure.	The SNMP code now implements structured exception handling to avoid this failure type.
CSCds24423	Call Forward process hangs.	Cisco CallManager software has been modified to delete the forwarding process after the call finishes to a DN, which was set up to have call pickup group service but no call forwarding.
CSCds26179	Voice mail forwarding consumes near 100% of Cisco CallManager's resources.	Cisco CallManager has been modified so that it consumes less CPU time to find the available Cisco uOne port. When many users simultaneously access voice mail, the Cisco CallManager will not go to 100% CPU usage. Other users can still get a dial tone and make calls as normal.
CSCds18584	Web security and crash protection for web.	Changes were made to the authentication methods in the Cisco CallManager software.
CSCds29375	MWI with Lucent/DPA Migration Configuration with no Device Reg. = 100% CPU.	Engineers created two mailboxes on Octel system that are connected to a Calista DPA. The two mailboxes have the ability to turn on a message lamp if a message is received. The Cisco CallManager does not have a phone that corresponds to these mailboxes, so if the mailbox attempts to turn on an MWI, it will be an invalid phone number to the Cisco CallManager.
CSCds31447	A call comes in from the C.O. via an IOS-Gateway(A), the call then gets Call Forward All back out a different IOS-Gateway(B), and there are audio problems	Cisco CallManager software only sends the Alert message to a Symbol phone device when it receives a call progress message followed by Connect message (without the Alert message) from the terminating party.
CSCds23120	Forward no answer to PSTNextension provides dead air.	The Cisco CallManager software has been modified so, if the call was connected and service parameter "NoProgressForAlertingFlag" was not set, then send Progress message when receiving the Alert message and the Alert message was suppressed.
CSCds33345	Call from PSTN: forward no answer to PSTN rings once, then is dropped.	The Cisco CallManager software has been modified so, if the call was connected and service parameter "NoProgressForAlertingFlag" was not set, send Progress message when receiving the Alert message and the Alert message was suppressed.
CSCds47721	MWI state is not correct after phone resets.	After failover scenario, failback to database publisher did not occur.
CSCds47622	Cisco CallManager subscriber 100% CPU usage possibly due to high Cisco uOne use.
CSCds33334	Cisco CallManager Service stops unexpectedly for 1 minute.	An unsupported CTI device caused the Cisco CallManager to stop.
CSCds43525	AVVID: Devices will not reset from Cisco CallManager. They must be manually reset.	The problem occurred because the buffer size In SSAPIServer and SSAPIClient was not being set large enough to accommodate large customer calling search spaces. The buffer sizes were changed, and this fixed the error.
CSCds49615	Cisco uOne Call Forward hop count is independent from normal Call Forward hop count.	The Cisco CallManager software allows the customer to add the VoiceMailMaximumHopCount so that the voice mail hop count can be separated from the forward hop count. This allows the customer to access all Cisco uOne ports without the limitation of the forward hop count.
CSCds04998	IIS services fail and restart after a period of time.	This problem occurred when a Foreign key violation caused a database layer to throw a huge number of errors. Protection on BAT virtual Directory was set to HIGH(ISOLATED) so as not to crash whole of IIS even if this error occurs.
CSCds18567	Updating Call Forwarding parameter does not take effect.	The errors in the layer/DB Admin were affecting other parts of the system because the IIS process for the Cisco CallManager Administration web was not set to run as isolated (Application Protection set to High). Install needs to set the Cisco CallManager Administrator and Cisco CallManager User applications to run isolated to prevent problems in the web pages from affecting other services, including DB Layer Monitor and Cisco CallManager.
CSCds21447	Cisco uOne ports do not register with secondary Cisco CallManager on failover.	The Cisco uOne port possibly was connected to Cisco CallManager but not registered. The Cisco CallManager accelerates registration attempts by dropping registration requests but keeps the connection up and provides keepalives. The device showed re-register after some timeout, but Cisco uOne does not do this.
CSCds55666	Search space cannot handle partitions more than 1K.	The problem was caused by an attempt to concatenate the calling search space associated with a device to the end of a calling search space associated with a line.
CSCds53528	Cisco CallManager sends nonconforming H.323 messages to the gateway.	A nonconforming H.225 Information message was sent to the gateway when call forwarding hop counts were exceeded for an inbound call to an extension number that is set up with call forward all to itself.
CSCds11693	30 hop call forwarding using 100% CPU.	Cisco CallManager software has been enhanced to make call forwarding more efficient.
CSCds64152	Parking conference call and not retrieving causes stack walk.	The Cisco CallManager software has been changed to correctly handle the situation in which the conference call is parked and not retrieved.
CSCds36692	Having in excess of 200 translation patterns causes Cisco CallManager to take more than 10 minutes to initialize.	This has been fixed by increasing the timeout from 10 to 20 minutes.

Resolved Caveats - Release 3.0(3b)

Table 3 Cisco CallManager Release 3.0(3b) Resolved Caveats 

DDTS Number	Summary	Explanation
CSCds32253	If you install the publisher, then change the Administrator password for SQL Srv, installing further subscribers will fail.	After changing the password on the publisher (specifically the SQL Svc user), you cannot successfully add further subscribers into the cluster.
CSCds29243	The Cisco IP Phone 7960 stops responding and only displays the text "Opening."	This problem can occur when all Cisco CallManagers in the phone's redundancy group list are unavailable. After attempting to connect to the Cisco CallManagers in its group list, the phone stops responding eventually.
CSCds21180	After Cisco CallManager failure, some phones require reboot to reregister.	A Cisco IP Phone 7960 that unregisters from all configured Cisco CallManagers after a Cisco CallManager failure may require rebooting to restore connectivity.
CSCdr95107	The Cisco IP Phone 7960 crashes when receiving malformed audio packets.	When connecting to Cisco uOne voice mail (where a G.729 connection is forced), Cisco uOne sends malformed G.729 packets, which cause the phone to crash and reboot.

Resolved Caveats - Release 3.0(3)

Table 4 lists and describes Caveats that were resolved in Cisco CallManager Release 3.0(3).

Table 4 Cisco CallManager Release 3.0(3) Resolved Caveats 

DDTS Number	Summary	Explanation
Cisco CallManager
CSCds21424	Cisco CallManager terminated abnormally with memory corruption and a faulty alarm message.	An alarm message with an incorrect parameter caused memory corruption.
CSCds19482	CPU usage cycling 40% to 70% every 20 seconds.	CPU was tracking between about 70% and 40% in a regular cycle (20 seconds high; 20 seconds low). All the other Cisco CallManagers were below 10%. A Cisco IP Phone 7960 that was constantly requesting the same information because it missed a message caused this event.
CSCds18538	MessageWaitingOn or MessageWaitingOff string update causes runtime error in service parameters.	When the user attempts to assign a number to the MessageWaitingOn or MessageWaitingOff service parameters, a run-time error line 74 displays.
CSCds17394	Cisco CallManager 100% CPU usage.	Cisco CallManager CPU usage went to near 100%, and users experienced very slow response from Cisco CallManager.
CSCds11873	Cisco CallManager 3.0 does not send SMDI during transfer on busy to Octel 250.	Cisco Call Manager 3.0 does not send an SMDI link message to an Octel 250 when the Octel does an unsupervised transfer to a busy (or unregistered) station that forwards back into the Octel.
CSCds07855	Call pickup of blind transfer occurs.	1. Phone A calls Phone B. 2. Phone B answers call. 3. Phone B presses transfer, then dials Phone C, then presses transfer button and hangs up phone. 4. Phone C rings. 5. Phone D tries to do a Call Pickup, fails, and puts itself On-Hook. 6. Phone A hears Re-Order and Phone C continues to ring. 7. Phone C is answered. 8. Connection completes between Phone A and Phone C. Duplicate of CSCds09040 (call pickup groups are not working if transfer started the call to the pickup group number).
CSCds06332	Call forward is not working when multiple hops are down.
CSCds05118	Calls drop randomly on a 5300 phone load when an error occurs.	Calls drop through a 7200 or 5300 gateway randomly. A TCP error coming from a call that is disconnecting normally causes this problem.
CSCds02656	Intercluster dead air —Zero bandwidth.	This occurs when an entry in the route list does not respond. If bandwidth is used up, call is being routed to the secondary CM and then the call eventually times out after a long period of "dead air."
CSCds02623	Intercluster dead air—busy.	Cluster 09 Phone 99999 calls Cluster 04 Phone 43520. DN 43520 is off hook; DN 99999 gets dead air.
CSCds02309	Subscriber Dial Pattern Change needs Cisco CallManager stop/start.	The problem occurs because the Cisco CallManager software does not handle registration of more than 64 DNs/route patterns per route list.
CSCdr99090	Symbol phone calling out via gateway does not complete.	Symbol phone calling out via a 5300 to a PSTN number rings twice, and then the symbol phone goes idle. Symbol phone calling out via a DT24+ to a PSTN number rings twice, and then the symbol phone says call declined. If the PSTN number is forwarded directly to voice mail, (it does not ring), then the call completes, and voice mail can be accessed
CSCdr97447	Call pickup groups stop working.	Call pickup groups seem to work OK for a while after they are created or after the Cisco CallManager is restarted. However, after an undetermined period of time, they cease to function.
CSCdr84584	Cisco CallManager fails to cut-through voice-path after progress message.	Gateway used: AS5300. The gateway is handling the progress message correctly; on receiving progress message, the conference is created ,and an H245 cap request is sent out to Cisco CallManager. Cisco CallManager responds with status message: message not compatible with call state or message type nonexistent or not implemented. CSCdr80083 is a duplicate of this caveat.
CSCdr79073	DisplayIEDeliveryFlag=True causes no connect through T1 CAS.	Under Cisco CallManager Service Parameters, if DisplayIEDeliveryFlag=T for True, a call will not set up if routed to PBX via PRI then off PBX to other equipment via T1 CAS. The IP phone caller will get Fast Busy. With this flag set to T(rue), you normally see the calling and called party name delivery in the SETUP and CONNECT messages.
CSCdr70073	Cisco CallManager server reboots forever if you do not log in.	Several Cisco CallManager servers would reboot forever if you did not log in. This problem began after upgrading to Release 3.0(1) from an earlier version of Release 3.0. The problem only occurs when the Publisher cannot contact the subscriber. Approximately 65 seconds after the message displays on the screen asking the user to press Control-Alt-Delete to logon, the server reboots.
CSCdr57950	Ringing tone on the phone does not correspond with the call state.
CSCdr57966	Request for tone on hold.	A ToneOnHold service parameter has been added for Cisco CallManager.
CSCdr57963	No hold tone when a user places a particular call on hold.	No hold tone occurs when releasing a call from hold if the other party has also put the call on hold.
CSCdr58885	Illegal sequence of DT 24+ for releasing the line.	When DT 24+ disconnects the line, it always takes 30 seconds (thus, until T305 timer expires) to release the B-channel completely.
CSCdr57872	DT 24+ ignores progress indicator No.8 if disconnect message is received.	DT24+ ignores the DISCONNECT message that contains progress indicator No. 8, "in-band information or appropriate pattern now available." It seems that DT24+ seems to consider only the DISCONNECT message. The DT24+ releases the call.
CSCdr57383	Line lamp does not blink at different rates on multiple line phones.	When phone has with same line appearance on multiple phones, A, B and C., call comes in and A answers call. A places call on hold. All occurrences of this line appear the same on all phones. No differentiation designates phone that actually placed call on hold.
CSCdr57362	No hold tone occurs while call is parked.	When a call is received and parked, the calling party hears nothing while parked.
CSCdr57272	OutofBandwidthText message will not display on a Cisco IP Phone 7960.	The "Not Enough Bandwidth" message that displays on a Cisco IP Phone when calling between locations that are out of bandwidth will not display on a Cisco IP Phone 7960. This text displays correctly on the Cisco IP Phone 12 SP and other Cisco IP Phones.
CSCdr56276	Call waiting times out after 22 seconds.	Phone A calls phone C. Call is established, A and C are conversing. Phone B calls phone C. Phone C hears call waiting beep, and phone B hears ringback. Phone C does not immediately switch to the new call, so, after ~22 seconds, phone B gets reorder. All phones are set up for no call forwarding of any kind. In New Zealand, the phone company does not timeout calls until 3 minutes elapse. If you call someone and they do not answer, their phone will ring for 3 minutes or until the originator hangs up, whichever occurs first. The customer thinks call waiting should behave the same way. The customer wants to know whether there is a timer they can configure. A new system parameter called CallWaitingTimeout was added. The default value for this parameter, if not present, is 180 seconds (3 minutes).
CSCdr55758	45-second delay to reorder on invalid # intercluster call, 2 Cisco CallManagers per cluster.	A number of problems exist where calls have no progress and, after approximately 45 seconds, revert to reorder tone. This problem relates to defining intercluster H.323 from source cluster to primary and secondary Cisco CallManagers in another cluster using route groups with both primary and secondary defined.
CSCdr55189	Cisco IP Phone 7960 takes 7 minutes to work if the pvid of the phone is not equal to the pvid of the Cisco CallManager.	When a Cisco  IP Phone 7960 is attached to a Cisco Catalyst 6000 switch, if the pvid on the switch port is changed, the phone may take up to 7 minutes to reconfigure and connect to the Cisco CallManager.
CSCdr52811	No call progress occurs when calling a busy user over DE 30+.	This problem occurs when placing a call out a DE 30+, and the called user is busy. The Cisco IP Phone displays date and time instead of user busy tone.
CSCdr49092	The dialing plan script incorrectly blocks the n11 office code.	This problem will cause the calls to get a reorder tone if the dialer enters the office code as X11.
CSCdr39846	Cisco CallManager is not interpreting Screening Indicator correctly.	Cisco IP phone prefixes a random or garbage character to the number display on the LCD screen. This occurs when a call is placed from the PSTN to an IP phone with the following configuration: PSTN—>AS5300—> Cisco CallManager—>Cisco IP Phone. The AS5300 uses ISDN PRI signalling to set up the call.
CSCdr35729	Cisco CallManager with Cisco Catalyst 6000 does not support G.723.1 variable voice payload.	The problem was fixed in transcoder load M001A300 and conference bridge load C001A300.
CSCdr14562	Clicking too rapidly on the Update button in the Cisco CallManager Administration Configuration screen can cause the browser to stop responding.	The browser seems to be connecting to the server, but it remains in a wait state from which it cannot recover. The browser does not respond to any user input. The status area at the bottom of the window displays the message Validating....
CSCdp97606	When a port on a Cisco Unicast Conference Bridge is conferenced back to itself, a feedback loop is created in the conference bridge and all participants will experience audio feedback.	The fix prevents a Meet Me conference participant from transferring the call to the same Meet Me conference number, thus preventing the feedback problem from occurring. Now, when the Meet Me conference participant attempts to transfer the call to the same Meet Me conference number, Cisco CallManager will ignore the transfer button.
DC Directory
CSCdp60775	DC Directory exits with no warning or alert.	The Cisco CallManager User pages are not accessible, or the user administration pages return errors when accessed. Under extreme conditions such as low memory or network problems, the DCD Directory Server service could stop running. This causes the web pages mentioned above to function incorrectly or not at all.
CSCdp98131	DC Directory server fails on restart during avvid_cfg.	The problem was due to Windows not cleaning up the shared memory resources quickly enough. Instead of stooping and restarting DCD, avvid_cfg now sleeps for 65 seconds to allow MetaLink sufficient time to discover the DC Directory admin node.
CSCdr05501	Cisco User Preferences upgrade removed DC Directory service.	The Cisco User Preferences Pages upgrade installation ran with no apparent problems. After the install completed, the machine was rebooted as instructed. When the system came back up, no DC Directory service was present.
CSCdr20006	Incorrect search results display in the User Directory search.	The problem occurs when 1. A search is executed from either the basic or advanced search pages. 2. The browser Back button is clicked. 3. A new search is entered and executed. After the above steps are performed, the results of the first search display as the results for the second search, which is incorrect.
CSCdr32527	After adding a device, you must close the browser t