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Table Of Contents
Release Notes for Cisco MC3810 for Cisco IOS Release 12.1 XM
Determining the Software Version
Upgrading to a New Software Release
New Hardware and Software Features in Cisco IOS Release 12.1(5) XM7
New Hardware and Software Features in Cisco IOS Release 12.1(5) XM6
New Hardware and Software Features in Release 12.1(5) XM5
New Hardware and Software Features in Release 12.1(5) XM4
New Hardware and Software Features in Release 12.1(5) XM3
New Hardware and Software Features in Release 12.1(5) XM2
New Hardware and Software Features in Release 12.1(5) XM1
New Hardware Features in Release 12.1(5) XM
New Software Features in Release 12.1(5) XM
MGCP Basic CLASS and Operator Services
Using the Cisco MC3810 with QSIG or BRI
Using the Cisco MC3810 with the PSTN
Caveats for Cisco IOS Release 12.1 XM
Open Caveats — Cisco IOS Release 12.1(5) XM7
Resolved Caveats — Cisco IOS Release 12.1(5) XM7
Open Caveats—Cisco IOS Release 12.1(5) XM6
Open Caveats—Cisco IOS Release 12.1(5) XM5
Resolved Caveats—Cisco IOS Release 12.1(5) XM5
Open Caveats—Cisco IOS Release 12.1(5) XM4
Resolved Caveats—Cisco IOS Release 12.1(5) XM4
Open Caveats—Cisco IOS Release 12.1(5) XM3
Resolved Caveats—Cisco IOS Release 12.1(5) XM3
Open Caveats—Cisco IOS Release 12.1(5) XM2
Resolved Caveats—Cisco IOS Release 12.1(5) XM2
Open Caveats—Cisco IOS Release 12.1(5) XM1
Resolved Caveats—Cisco IOS Release 12.1(5) XM1
Open Caveats—Cisco IOS Release 12.1(5)XM
Resolved Caveats—Cisco IOS Release 12.1(5)XM
Cisco IOS Software Documentation Set
Cisco IOS Release 12.1 Documentation Set Contents
Obtaining Technical Assistance
Contacting TAC by Using the Cisco TAC Website
Release Notes for Cisco MC3810 for Cisco IOS Release 12.1 XM
February 13, 2002
Cisco IOS Release 12.1(5) XM7
78-12050-01 Rev. H0
These release notes for the Cisco MC3810 multiservice access concentrator describe the enhancements provided in Cisco IOS Release 12.1(5) XM7. These release notes are updated as needed.
For a list of the software caveats that apply to Release 12.1(5) XM7, see the "Caveats for Cisco IOS Release 12.1 XM" section and Caveats for Cisco IOS Release 12.1T that accompanies these release notes. This caveats document is updated for every maintenance release and is also located on Cisco.com and the Documentation CD-ROM.
Use these release notes with Cross-Platform Release Notes for Cisco IOS Release 12.1 located on Cisco.com and the Documentation CD-ROM.
Contents
These release notes describe the following topics:
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Caveats for Cisco IOS Release 12.1 XM
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Introduction
The Cisco MC3810 multiservice access concentrator is fully supported by Cisco IOS software for multiprotocol routing, bridging, and Systems Network Architecture (SNA). As part of an enterprise backbone or as customer premises equipment (CPE) to serve provider-managed network services, the Cisco MC3810 reduces operating costs and complexity, and increases network throughput and performance.
The Cisco MC3810 provides a complete file system for software images, message files, and reports. The standard Flash memory size is 8 MB, and a 16-MB upgrade option is available. The 16-MB version can hold two code images simultaneously for fail-safe upgrades.
Management and configuration of the Cisco MC3810 should be familiar to the Cisco IOS user and compatible with existing management systems. As such, it provides a superset of the Cisco command-line interface (CLI). The Cisco MC3810 can be managed by standard Cisco management platforms and facilities such as CiscoView and the native remote log-in facilities provided by Telnet and rlogin. Three types of configuration interfaces are provided:
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The HTTP-based interface allows configuration from any web browser such as Netscape Navigator or Microsoft Explorer. The simple network management protocol (SNMP) MIB allows management of the Cisco MC3810 from SNMP managers (for example, HP OpenView).
For information on new features and Cisco IOS commands supported by Cisco IOS Release 12.1(5) XM7, see the "New and Changed Information" section and the "Related Documentation" section.
System Requirements
This section describes the system requirements for Cisco IOS Release 12.1(5) XM7:
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Memory Recommendations
Hardware Supported
Cisco IOS Release 12.1(5) XM7 supports the Cisco MC3810 multiservice access concentrator. The Cisco MC3810 base chassis is a semi fixed configuration router that can be customized for a specific application at the factory or in the field by a qualified technician. The base chassis includes the following components:
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Cisco MC3810 series concentrators are supplied in various standard hardware configurations. These are equipped with different sets of functional modules to provide specific functional capability. Many configurations are possible, but they are all variations of the basic categories described in Table 2. Supported hardware is shown in Table 3. The chassis opening for any mounting area not equipped with a functional module is closed off with a removable cover plate.
Table 2 Cisco MC3810 Series Standard Hardware Categories
Base chassis services1
None
Optional modules can be added to create other chassis variations
Base chassis services1 plus compressed analog voice connections to telephone, fax, central office, analog PBX
AVM (analog voice module) with 1 to 6 APMs (analog personality modules)
VCM3 or VCM6 or
HCM2 or HCM6
(only one voice compression module)MFT2 to support a channelized T1 or E1 trunk
MFT2 and VDM3 to support video codec dialing
Base chassis services1 plus compressed digital voice through digital PBX
DVM
VCM3 or VCM6 or
HCM2 or HCM6
(one or two voice compression modules)MFT2 to support a channelized T1 or E1 trunk
MFT2 and VDM to support video codec dialing
Base chassis services1 plus compressed digital voice through PINX
BVM and MFT1
VCM3 or VCM6 or
HCM2 or HCM6
(only one voice compression module)MFT to support a channelized T1 or E1 trunk
MFT2 and VDM3 to support video codec dialing
Base chassis services1 plus channelized T1 or E1
MFT2
DVM to support digital cross-connect voice (channel bank functionality/
drop-and-insert) through digital PBX or channel bankVDM3 to support video codec dialing
VCM3 and/or VCM6, or HCM2 and/or HCM6, to support voice compression
1 Base chassis services include administrative access, Ethernet, data transport, and video transport.
2 The MFT is available with or without BRI backup.
3 If a VDM is installed, an MFT is required to support ATM for the video dialing network connection.
Table 3 Hardware Supported on the Cisco MC3810 for Cisco IOS Release 12.1(5)XM4
6-port AVM1
MC3810-AVM6=
1-port E1 DVM, connects to PBX/channel bank/key system2
MC3810-DVM-E1=
1-port T1 DVM, connects to PBX/channel bank/key system2
MC3810-DVM-T1=
1-port unbalanced E1 DVM, connects to PBX/channel bank/key system2
MC3810-DVM-BNC=
4-port BRI voice module3
MC3810-BVM4=
ModuleSupports an RS-366 Automatic Calling Equipment (ACE) interface to the DTE port of the videoconferencing equipment4
MC3810-VDM=
1-port E & M6 analog module
MC3810-APM-EM=
1-port FXS7 analog module
MC3810-APM-FXS=
1-port FXO8 analog module
MC3810-APM-FXO=
1-port FXO analog module, approved for the U.K.
MC3810-FXO-UK=
1-port FXO analog module, approved for Germany
MC3810-FXO-GER=
1-port FXO analog module, approved for PR29 countries
MC3810-FXO-PR2=
1-port FXO analog module, approved for PR310 countries
MC3810-FXO-PR3=
2-DSP HCM12 , supports up to 8 channels of compressed voice
MC3810-HCM2=
6-DSP HCM, supports up to 24 channels of compressed voice
MC3810-HCM6=
3-DSP VCM13 , supports up to 6 channels14 of compressed voice
MC3810-VCM3=
6-DSP VCM, supports up to 12 channels9 of compressed voice
MC3810-VCM6=
1-port MFT with RJ-48 channelized T1 interface
MC3810-MFT-T1=
1-port MFT with RJ-48 channelized E1 interface
MC3810-MFT-E1=
1-port MFT with unbalanced E1-BNC interface
MC3810-MFT-BNC=
1-port MFT with RJ-48 channelized T1 and BRI S/T interfaces
MC3810-MFT-TBS=
1-port MFT with unbalanced E1-BNC and BRI S/T interfaces
MC3810-MFT-EUS=
1 Requires one to six APMs and one voice compression module (VCM3 or VCM6).
2 Requires one or two voice compression modules (VCM6) for processed voice.
3 Requires one voice compression module (VCM3 or VCM6) and Cisco IOS Release 12.0(4)T or a later release.
4 Requires MFT for ATM connectivity and Cisco serial V.35 DCE cable (product order number 72-1721-01) that includes a Ringing Indicator (RI) conductor, and a Cisco RS-366 ACE cable (product order number 72-1722-01) to connect the VDM to the videoconferencing equipment RS-366 dial-up DTE port.
5 For use with analog voice modules; one AVM requires at least one APM and supports up to six APMs.
6 E&M = recEiver & transMitter (or Ear & Mouth)
7 FXS = foreign exchange station
8 FXO = foreign exchange office
9 PR2 countries currently include Australia and New Zealand.
10 PR3 countries currently include Japan and Singapore.
11 VCMs and Cisco IOS Plus feature sets are required for voice processing (for example, switching, compression, echo cancellation, and silence suppression) but not for drop-and-insert applications.
12 HCM = high performance compression module
13 VCM = voice compression module
14 Cisco MC3810 maximum voice channel support by compression algorithm: G.711 at 64 kbps = 6 channels; G.726 at 32 kbps = 12 channels; G.729 at 8 kbps = 12 channels; G.729a at 8 kbps = 24 channels.
Determining the Software Version
To determine the version of Cisco IOS software running on a Cisco MC3810, log in and enter the show version EXEC command:
MC3810>#show versionCisco Internetwork Operating System SoftwareIOS (tm) MC3810 Software (mc3810-js-mz), Version 12.1(5) XM7, RELEASE SOFTWAREUpgrading to a New Software Release
For general information about upgrading to a new software release, refer to Upgrading the Cisco IOS Software Release in Cisco Routers and Modems located at:
http://www.cisco.com/warp/public/130/upgrade_index.shtml
Feature Set Table
Cisco IOS software is packaged in feature sets consisting of software images—depending on the platform. Each feature set contains a specific set of Cisco IOS features, as shown inTable 4.
Cisco IOS Release 12.1(5) XM7 supports the same feature sets as Cisco IOS Release 12.1(5) T, but Cisco IOS Release 12.1(5) XM7 can include new features supported by the Cisco MC3810.
Caution
Table 4 lists the features and feature set images supported by the Cisco MC3810 in Cisco IOS Release 12.1(5) XM7 and uses the following conventions:
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Table 4 Feature List by Feature Set for the MC3810
and VoATMMGCP CAS PBX and AAL2 PVC1
(5) XM
Yes
Yes
MGCP Basic CLASS and Operator Services1
(5) XM
Yes
Yes
1 This feature is supported only on MC3810 systems with the HCM version of the DSP card. This feature is not supported with the VCM version of the DSP card.
New and Changed Information
The following is a list of the new hardware and software features supported by the Cisco MC3810 for Cisco IOS Release 12.1(5) XM7.
New Hardware and Software Features in Cisco IOS Release 12.1(5) XM7
There are no new hardware and software features in the Cisco MC3810 series for Cisco IOS Release 12.1(5) XM7.
New Hardware and Software Features in Cisco IOS Release 12.1(5) XM6
Cisco IOS Release 12.1(5) XM6 does not support the Cisco MC3810.
New Hardware and Software Features in Release 12.1(5) XM5
There is no new hardware and software supported by the Cisco MC3810 in Cisco IOS Release 12.1(5) XM5.
New Hardware and Software Features in Release 12.1(5) XM4
There is no new hardware and software supported by the Cisco MC3810 in Cisco IOS Release 12.1(5) XM4.
New Hardware and Software Features in Release 12.1(5) XM3
There is no new hardware and software supported by the Cisco MC3810 in Cisco IOS Release 12.1(5) XM3.
New Hardware and Software Features in Release 12.1(5) XM2
There is no new hardware and software supported by the Cisco MC3810 in Cisco IOS Release 12.1(5) XM2.
New Hardware and Software Features in Release 12.1(5) XM1
There is no new hardware and software supported by the Cisco MC3810 in Cisco IOS Release 12.1(5) XM1.
New Hardware Features in Release 12.1(5) XM
There is no new hardware and software supported by the Cisco MC3810 in Cisco IOS Release 12.1(5) XM.
New Software Features in Release 12.1(5) XM
The following new software features are supported by the Cisco MC3810 in Cisco IOS Release 12.1(5) XM.
MGCP CAS PBX and AAL2 PVC
The MGCP CAS PBX and AAL2 PVC feature set extends the earlier Simple Gateway Control Protocol (SGCP) CAS and AAL2 support onto the merged SGCP/MGCP software base. These features enable various service provider solutions, including Integrated Access, IP PBX, Residential Cable Access, and Voice over DSL.
Note
To check the type of DSP card in your MC3810, enter a show version command at the EXEC prompt.
For example:Router#show version
If you have an HCM card, the following line appears as part of the show version information:
1 6-DSP (slot 2) High Performance Compression Module(v01.A0)
If you have a VCM card, the following line appears as part of the show version information:
1 6-DSP (slot 2) Voice Compression Module(v255.V7)
MGCP Basic CLASS and Operator Services
The MGCP Basic CLASS and Operator Services are a set of calling features, sometimes called "custom calling" features, that use MGCP to transmit voice, video, and data over the IP network. These features are usually found in circuit-based networks. MGCP BCOS brings them to the Cisco IOS gateways on packet-based networks.
Note
To check the type of DSP card in your MC3810, enter a show version command at the EXEC prompt.
For example:Router#show version
If you have an HCM card, the following line appears as part of the show version information:
1 6-DSP (slot 2) High Performance Compression Module(v01.A0)If you have an VCM card, the following line appears as part of the show version information:
1 6-DSP (slot 2) Voice Compression Module(v255.V7)The MGCP BCOS software is built on the MGCP CAS PBX and AAL2 software package, and supports MGCP 0.1 and the earlier protocol versions Simple Gateway Control Protocol (SGCP) 1.1 and 1.5.
The following MGCP BCOS features are available on Residential Gateways (RGWs):
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The following two features can be run as RGW or trunking gateway (TGW) features:
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MIBs
Current MIBs
To obtain lists of supported MIBs by platform and Cisco IOS release, and to download MIB modules, go to the Cisco MIB website on Cisco.com at http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.
Deprecated MIBs
Old Cisco MIBs will be replaced in a future release. Currently, OLD-CISCO-* MIBs are being converted into more scalable MIBs without affecting existing Cisco IOS products or network management system (NMS) applications. You can update from deprecated MIBs to the replacement MIBs as shown in Table 5.
Important Notes
Using the Cisco MC3810 with QSIG or BRI
Serial port 1 is restricted to DCE operation when the following occurs:
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Using the Cisco MC3810 with the PSTN
This section includes important notes regarding use of the Cisco MC3810 with the public switched telephone network (PSTN).
Connections to the PSTN
Exercise care when connecting switched voice ports on the Cisco MC3810 directly to the PSTN because improper configurations can expose a corporate network to telephone fraud.
Switched Access from the PSTN
The Cisco MC3810 can connect a user from the PSTN directly to the corporate wide-area telephone network. You can configure the Cisco MC3810 as a phone switch that can switch a user to any location in that network, even to remote locations that are connected again to another PSTN. However, the Cisco MC3810 does not provide any mechanism to restrict users from calling after they are connected. Without proper network design, this condition could result in the unauthorized use of the corporate network for making calls at the corporation's expense. To prevent this from occurring, Cisco does not recommend connecting a switched voice interface on the Cisco MC3810 directly to the PSTN. Instead, it should be connected to a PBX that implements a security scheme that prevents unauthorized use.
Nonswitched Calls
The same opportunity for illicit use does not exist for nonswitched call types such as pass-through connections, although the possibility for fraud does exist at the direct contact point. Pass-through calls create a path to only a single location specified by the network administrator. For example, a pass-through connection might be used to pass a trunk from a PBX to the PSTN. In this case, the trunk on the PBX always passes straight through the Cisco MC3810 to the PSTN. As a result, the necessary security is provided by the PBX.
Caveats for Cisco IOS Release 12.1 XM
Caveats describe unexpected behavior or defects in Cisco IOS software releases. Severity 1 caveats are the most serious caveats; severity 2 caveats are less serious. Severity 3 caveats are moderate caveats, and only select severity 3 caveats are included in the caveats document.
This section contains only open and resolved caveats for the current Cisco IOS maintenance release.
All caveats in Cisco IOS Release 12.1 and Cisco IOS Release 12.1T are also in Cisco IOS Release 12.1(5) XM7.
For information on caveats in Cisco IOS Release 12.1T, see Caveats for Cisco IOS Release 12.1T.
For information on caveats in Cisco IOS Release 12.1, see Caveats for Cisco IOS Release 12.1, which lists severity 1 and 2 caveats and select severity 3 caveats for Cisco IOS Release 12.1 and is located on Cisco.com and the Documentation CD-ROM.
Caveat numbers and brief descriptions of caveats in Cisco IOS Release 12.1(5) XM7 are listed in Table 6. For details about a particular caveat, go to Bug Toolkit at:
http://www.cisco.com/kobayashi/bugs/bugs.html
To access this location, you must have an account on Cisco.com. For information about how to obtain an account, go to the "Feature Navigator" section.
Note
Open Caveats — Cisco IOS Release 12.1(5) XM7
There are no open caveats specific to Cisco IOS Release 12.1(5) XM7 that require documentation in the release notes.
Resolved Caveats — Cisco IOS Release 12.1(5) XM7
All the caveats listed in Table 6 are open in Cisco IOS Release 12.1(5) XM7. This table lists only severity 1 and 2 caveats and select severity 3 caveats.
Open Caveats—Cisco IOS Release 12.1(5) XM6
Cisco IOS Release 12.1(5) XM6 does not support the Cisco MC3810.
Open Caveats—Cisco IOS Release 12.1(5) XM5
There are no open caveats specific to Cisco IOS Release 12.1(5) XM5 that require documentation in the release notes.
Resolved Caveats—Cisco IOS Release 12.1(5) XM5
All the caveats listed in Table 7 are resolved in Cisco IOS Release 12.1(5) XM5. This table lists only severity 1 and 2 caveats and select severity 3 caveats.
Open Caveats—Cisco IOS Release 12.1(5) XM4
All the caveats listed in Table 8 are open in Cisco IOS Release 12.1(5) XM4. This table lists only severity 1 and 2 caveats and select severity 3 caveats.
Table 8 Open Caveats for Release 12.1(5) XM4
CSCdt61467
Need a way to change the default value of VPDN parameters
Resolved Caveats—Cisco IOS Release 12.1(5) XM4
All the caveats listed in Table 9 are resolved in Cisco IOS Release 12.1(5) XM4. This table lists only severity 1 and 2 caveats and select severity 3 caveats.
Open Caveats—Cisco IOS Release 12.1(5) XM3
All the caveats listed in Table 10 are open in Cisco IOS Release 12.1(5) XM3. This table lists only severity 1 and 2 caveats and select severity 3 caveats.
Resolved Caveats—Cisco IOS Release 12.1(5) XM3
All the caveats listed in Table 11 are resolved in Cisco IOS Release 12.1(5) XM3. This table lists only severity 1 and 2 caveats and select severity 3 caveats.
Open Caveats—Cisco IOS Release 12.1(5) XM2
The caveat listed in this section is open in Cisco IOS Release 12.1(5) XM2.
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This caveat is included because a Cisco MC3810 can function as a Gatekeeper.
On a Cisco 7200 series router, the Gatekeeper Transaction Message Protocol (GKTMP) may not be able to re-establish connection to the Backend Server until five minutes after the connection was terminated.
The Gatekeeper sends all requests to the server. However, if there is a slow link or limited processor capacity, the server is unable to respond to these requests on time. When this happens, the Gatekeeper may mark the server as unreachable and terminate the connection. Once the connection is terminated, it will not be re-established for another five minutes.
Workaround: Match server capacity to process requests with the number and capacities of the gatekeepers it is serving.
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When the PPP Password Authentication Protocol (PAP)-password validation fails—that is, when the PPP PAP password is configured incorrectly—a slow memory leak occurs. There is no workaround.
Resolved Caveats—Cisco IOS Release 12.1(5) XM2
All the caveats listed in this section are resolved in Cisco IOS Release 12.1(5) XM2. This section describes only severity 1 and 2 caveats and select severity 3 caveats.
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When a VoIP call is made and the POTS call leg is connected to a PBX using Q Signaling, a memory-allocation error might occur. There is no workaround.
This caveat has been resolved in Cisco IOS Release 12.1(5) XM2.
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If an Extended Ringback (XRBK) message with a specific connection ID (such as in "S:xrbk@conn-id") is included in a notification-request (RQNT) message to the terminating gateway after the call has been setup (that is, after a Create-Connection [CRCX] message has been sent), the RQNT message is rejected. However, if the connection ID is "$", the message is not rejected.
Workaround: Send the XRBK message without the connection ID (such as in "S:xrbk") or with "$" as the connection ID (such as in "S:xrbk@$"). Example:
RQNT 46533 aaln/1 SGCP 1.5 X: 281004 R: hd, vbd S: xrbk@$, rg, ci(,4088275001,sj827-15)Alternate workaround: Send the XRBK message in the CRCX message itself (that is, the CRCX message to the terminating gateway). Example:
CRCX 1205 aaln/2@l-gw1.whatever.net SGCP 1.5 C: A3C47F21456789F02 L: p:10, a:G.711, e:on, s:on M: sendonly R: hu, hf X: 0123456789AC S: ci(,7325551212,), wt, xrbk@$ v=0 c=IN IP4 128.96.41.1 m=audio 3456 RTP/AVP 0 0This caveat has been resolved in Cisco IOS Release 12.1(5) XM2.
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The originator of a call that is controlled by the Media Gateway Control Protocol (MGCP) or the Simple Gateway Control Protocol (SGCP) might experience poor voice quality. There is no workaround.
This caveat has been resolved in Cisco IOS Release 12.1(5) XM2.
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Connection setup improvements.
This caveat has been resolved in Cisco IOS Release 12.1(5) XM2.
Open Caveats—Cisco IOS Release 12.1(5) XM1
The caveat listed in this section is open in Cisco IOS Release 12.1(5) XM1.
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This caveat is included because a Cisco MC3810 can function as a Gatekeeper.
On a Cisco 7200 series router, the Gatekeeper Transaction Message Protocol (GKTMP) may not be able to re-establish connection to the Backend Server until five minutes after the connection was terminated.
The Gatekeeper sends all requests to the server. However, if there is a slow link or limited processor capacity, the server is unable to respond to these requests on time. When this happens, the Gatekeeper may mark the server as unreachable and terminate the connection. Once the connection is terminated, it will not be re-established for another five minutes.
Workaround: Match server capacity to process requests with the number and capacities of the gatekeepers it is serving.
Resolved Caveats—Cisco IOS Release 12.1(5) XM1
All the caveats listed in this section are resolved in Cisco IOS Release 12.1(5) XM1. This section describes only severity 1 and 2 caveats and select severity 3 caveats.
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When a VoIP call is made and the POTS call leg is connected to a PBX using Q Signaling, a memory-allocation error might occur. There is no workaround.
This caveat has been resolved in Cisco IOS Release 12.1(5)XM1.
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If an Extended Ringback (XRBK) message with a specific connection ID (such as in "S:xrbk@conn-id") is included in a notification-request (RQNT) message to the terminating gateway after the call has been setup (that is, after a Create-Connection [CRCX] message has been sent), the RQNT message is rejected. However, if the connection ID is "$", the message is not rejected.
Workaround: Send the XRBK message without the connection ID (such as in "S:xrbk") or with "$" as the connection ID (such as in "S:xrbk@$"). Example:
RQNT 46533 aaln/1 SGCP 1.5 X: 281004 R: hd, vbd S: xrbk@$, rg, ci(,4088275001,sj827-15)Alternate workaround: Send the XRBK message in the CRCX message itself (that is, the CRCX message to the terminating gateway). Example:
CRCX 1205 aaln/2@l-gw1.whatever.net SGCP 1.5 C: A3C47F21456789F02 L: p:10, a:G.711, e:on, s:on M: sendonly R: hu, hf X: 0123456789AC S: ci(,7325551212,), wt, xrbk@$ v=0 c=IN IP4 128.96.41.1 m=audio 3456 RTP/AVP 0 0This caveat has been resolved in Cisco IOS Release 12.1(5)XM1.
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The originator of a call that is controlled by the Media Gateway Control Protocol (MGCP) or the Simple Gateway Control Protocol (SGCP) might experience poor voice quality. There is no workaround.
This caveat has been resolved in Cisco IOS Release 12.1(5)XM1.
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Connection setup improvements.
This caveat has been resolved in Cisco IOS Release 12.1(5)XM1.
Open Caveats—Cisco IOS Release 12.1(5)XM
The caveat listed in this section is open in Cisco IOS Release 12.1(5)XM.
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The originator of a call that is controlled by the Media Gateway Control Protocol (MGCP) or the Simple Gateway Control Protocol (SGCP) might experience poor voice quality. There is no workaround.
Resolved Caveats—Cisco IOS Release 12.1(5)XM
There are no resolved caveats specific to Cisco IOS Release 12.1(5) X that require documentation in the release notes.
Related Documentation
The following sections describe the documentation available for the Cisco MC3810. Typically, these documents consist of hardware and software installation guides, Cisco IOS configuration and command references, system error messages, feature modules, and other documents.
Documentation is available as printed manuals or electronic documents, except for feature modules, which are available online on Cisco.com and the Documentation CD-ROM.
Use these release notes with the documents listed in the following sections:
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Release-Specific Documents
The following documents are specific to Cisco IOS Release 12.1 and are located on Cisco.com and the Documentation CD-ROM:
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On Cisco.com at:
Technical Documents: Cisco IOS Software: Cisco IOS Release 12.1: Release Notes: Cross-Platform Release Notes
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Release Notes: Cross-Platform Release Notes
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Technical Documents
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As a supplement to the caveats listed in "Caveats for Cisco IOS Release 12.1 XM" in these release notes, see Caveats for Cisco IOS Release 12.1 and Caveats for Cisco IOS Release 12.1T, which contains caveats applicable to all platforms for all maintenance releases of Cisco IOS Release 12.1 and Cisco IOS Release 12.1 T.
On Cisco.com at:
Technical Documents: Cisco IOS Software: Cisco IOS Release 12.1: Release Notes: Caveats
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Caveats
Note
Platform-Specific Documents
The documents listed below are available for the Cisco MC3810. These documents are also available online at Cisco.com and on the Documentation CD-ROM.
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To reach Cisco MC3810 documentation on Cisco.com, follow this path, beginning under the Service & Support heading:
Technical Documents: Access Servers and Access Routers: Multiservice Access Concentrators
To reach Cisco MC3810 documentation on the Documentation CD-ROM, follow this path:
Cisco Product Documentation: Access Servers and Access Routers: Multiservice Access Concentrators
Feature Modules
Feature modules describe new features supported by Cisco IOS Release 12.1(5) XM7 and are updates to the Cisco IOS documentation set. A feature module consists of a brief overview of the feature, benefits, configuration tasks, and a command reference. As updates, the feature modules are available online only. Feature module information is incorporated in the next printing of the Cisco IOS documentation set.
On Cisco.com at:
Technical Documents: Cisco IOS Software: Cisco IOS Release 12.1: New Feature Documentation
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: New Feature Documentation
Feature Navigator
Feature Navigator is a web-based tool that enables you to quickly determine which Cisco IOS software images support a particular set of features and which features are supported in a particular Cisco IOS image.
Feature Navigator is available 24 hours a day, 7 days a week. To access Feature Navigator, you must have an account on Cisco.com. If you have forgotten or lost your account information, e-mail the Contact Database Administration group at cdbadmin@cisco.com. If you do not have an account on Cisco.com, go to http://www.cisco.com/register and follow the directions to establish an account.
To use Feature Navigator, you must have a JavaScript-enabled web browser such as Netscape 3.0 or later, or Internet Explorer 4.0 or later. Internet Explorer 4.0 always has JavaScript enabled. To enable JavaScript for Netscape 3.x or Netscape 4.x, follow the instructions provided with the web browser. For JavaScript support and enabling instructions for other browsers, check with the browser vendor.
Feature Navigator is updated when major Cisco IOS software releases and technology releases occur. It contains feature information about mainline-, T-, S-, and P-trains. You can access Feature Navigator at the following URL:
http://www.cisco.com/go/fn
Cisco IOS Software Documentation Set
The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS command references, and several other supporting documents. The Cisco IOS software documentation set is shipped with your order in electronic form on the Documentation CD-ROM—unless you specifically ordered the printed versions.
Documentation Modules
Each module in the Cisco IOS documentation set consists of one or more configuration guides and one or more corresponding command references. Chapters in a configuration guide describe protocols, configuration tasks, and Cisco IOS software functionality, and contain comprehensive configuration examples. Chapters in a command reference provide complete command syntax information. Use each configuration guide with its corresponding command reference.
On Cisco.com at:
Technical Documents: Cisco IOS Software: Cisco IOS Release 12.1: Configuration Guides and Command References
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References
Cisco IOS Release 12.1 Documentation Set Contents
Table 12 lists the contents of the Cisco IOS Release 12.1 software documentation set, which is available in electronic form and in printed form if ordered.
Note
On Cisco.com at:
Technical Documents: Cisco IOS Software: Cisco IOS Release 12.1
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1
Obtaining Documentation
The following sections provide sources for obtaining documentation from Cisco Systems.
World Wide Web
You can access the most current Cisco documentation on the World Wide Web at the following sites:
Documentation CD-ROM
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM is updated monthly and may be more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.
Ordering Documentation
Cisco documentation is available in the following ways:
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http://www.cisco.com/cgi-bin/order/order_root.pl
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http://www.cisco.com/go/subscription
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Documentation Feedback
If you are reading Cisco product documentation on the World Wide Web, you can submit technical comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco.
You can e-mail your comments to bug-doc@cisco.com.
To submit your comments by mail, use the response card behind the front cover of your document, or write to the following address:
Attn Document Resource Connection
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-9883We appreciate your comments.
Obtaining Technical Assistance
Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain documentation, troubleshooting tips, and sample configurations from online tools. For Cisco.com registered users, additional troubleshooting tools are available from the TAC website.
Cisco.com
Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information and resources at anytime, from anywhere in the world. This highly integrated Internet application is a powerful, easy-to-use tool for doing business with Cisco.
Cisco.com provides a broad range of features and services to help customers and partners streamline business processes and improve productivity. Through Cisco.com, you can find information about Cisco and our networking solutions, services, and programs. In addition, you can resolve technical issues with online technical support, download and test software packages, and order Cisco learning materials and merchandise. Valuable online skill assessment, training, and certification programs are also available.
Customers and partners can self-register on Cisco.com to obtain additional personalized information and services. Registered users can order products, check on the status of an order, access technical support, and view benefits specific to their relationships with Cisco.
To access Cisco.com, go to the following website:
Technical Assistance Center
The Cisco TAC website is available to all customers who need technical assistance with a Cisco product or technology that is under warranty or covered by a maintenance contract.
Contacting TAC by Using the Cisco TAC Website
If you have a priority level 3 (P3) or priority level 4 (P4) problem, contact TAC by going to the TAC website:
P3 and P4 level problems are defined as follows:
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In each of the above cases, use the Cisco TAC website to quickly find answers to your questions.
To register for Cisco.com, go to the following website:
http://www.cisco.com/register/
If you cannot resolve your technical issue by using the TAC online resources, Cisco.com registered users can open a case online by using the TAC Case Open tool at the following website:
http://www.cisco.com/tac/caseopen
Contacting TAC by Telephone
If you have a priority level 1 (P1) or priority level 2 (P2) problem, contact TAC by telephone and immediately open a case. To obtain a directory of toll-free numbers for your country, go to the following website:
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml
P1 and P2 level problems are defined as follows:
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