Table Of Contents
Release Notes for Cisco 2800 Series Integrated Services Routers for Cisco IOS Release 12.4(4)XC
Determining the Software Version
Upgrading to a New Software Release
New Software Features in Release 12.4(4)XC4
Cisco Unified CME 4.0(4) Extension Assigner
New Software Features in Release 12.4(4)XC1
New Hardware Features in Release 12.4(4)XC
New Software Features in Release 12.4(4)XC
Call Detail Records (CDR) Feature Correlation ID for Supplementary Features
Cisco Unified Communications Manager Express 4.0
Cisco Unified Survivable Remote Site Telephony 4.0
Customizable PSTN Tones and H.323 Call-Disconnect Cause Codes
H.323 VoIP Call Preservation Enhancements for WAN Link Failures
SCCP PLAR with DTMF Out Pulse Digits for FXS Analog Phones
Secure Communication Between IP-STE Endpoint and Lineside STE Endpoint
Secure Communication Between IP-STE Endpoint and Trunkside STE Endpoint
Video Support for SCCP-Based Endpoints
Resolved Caveats - Cisco IOS Release 12.4(4)XC7
Open Caveats - Cisco IOS Release 12.4(4)XC7
Resolved Caveats - Cisco IOS Release 12.4(4)XC6
Open Caveats - Cisco IOS Release 12.4(4)XC6
Resolved Caveats - Cisco IOS Release 12.4(4)XC5
Open Caveats - Cisco IOS Release 12.4(4)XC5
Resolved Caveats - Cisco IOS Release 12.4(4)XC4
Open Caveats - Cisco IOS Release 12.4(4)XC4
Open Caveats -Cisco IOS Release 12.4(4)XC4
Resolved Caveats - Cisco IOS Release 12.4(4)XC3
Open Caveats - Cisco IOS Release 12.4(4)XC3
Resolved Caveats - Cisco IOS Release 12.4(4)XC2
Open Caveats - Cisco IOS Release 12.4(4)XC2
Resolved Caveats - Cisco IOS Release 12.4(4)XC1
Open Caveats - Cisco IOS Release 12.4(4)XC1
Resolved Caveats - Release 12.4(4)XC
Open Caveats - Release 12.4(4)XC
Caveat Updates and Special Notices
Cisco IOS Software Documentation Set
Release Notes for Cisco 2800 Series Integrated Services Routers for Cisco IOS Release 12.4(4)XC
First Released: June 9, 2008Last Revised: September 24, 2008Cisco IOS Release 12.4(4)XC7OL-9578-02 Seventh ReleaseThese release notes describe new features and significant software components for the Cisco 2800 series routers that support the Cisco IOS Release 12.4(4)XC releases. These release notes are updated as needed to describe new memory requirements, new features, new hardware support, software platform deferrals, microcode or modem code changes, related document changes, and any other important changes. Use these release notes with the Cross-Platform Release Notes for Cisco IOS Release 12.4T and About Cisco IOS Release Notes.
For a list of the software caveats that apply to the Release 12.4(4)XC releases, see the "Caveats" section. See also Caveats for Cisco IOS Release 12.4(20)T. The online caveats document is updated for every maintenance release.
Contents
System Requirements
This section describes the system requirements for Release 12.4(4)XC and includes the following sections:
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Determining the Software Version
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Memory Requirements
Table 1 describes the memory requirements for the Cisco IOS feature sets supported by Cisco IOS Release 12.4(4)XC on the Cisco 2800 series routers.
Hardware Supported
Cisco IOS Release 12.4(4)XC supports the following Cisco 2800 series routers:
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For descriptions of existing hardware features and supported modules, see the hardware installation guides, configuration and command reference guides, and additional documents specific to the Cisco 2800 series routers, which are available at:
http://www.cisco.com/en/US/products/ps5854/tsd_products_support_series_home.html
Determining the Software Version
To determine the version of Cisco IOS software currently running on your Cisco 2800 series router, see About Cisco IOS Release Notes located at: http://www.cisco.com/en/US/docs/ios/12_4/12_4x/12_4xy15/ReleaseNote.html.
Upgrading to a New Software Release
For general information about upgrading to a new software release, see About Cisco IOS Release Notes located at:
http://www.cisco.com/en/US/docs/ios/12_4/12_4x/12_4xy15/ReleaseNote.html.
Feature Set Tables
For information about feature set tables, see About Cisco IOS Release Notes located at: http://www.cisco.com/en/US/docs/ios/12_4/12_4x/12_4xy15/ReleaseNote.html.
New and Changed Information
This section contains the following information:
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Updated Naming Conventions
The following product names have been changed in Cisco IOS Release 12.4(4)XC:
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New Software Features in Release 12.4(4)XC4
Cisco Unified CME 4.0(4) Extension Assigner
The Cisco Unified Communications Manager Express (CME) feature enables installation technicians to assign extension numbers to Cisco Unified CME phones without accessing the server. For more information, see the following URL: http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/admin/configuration/guide/cmexasgn.html
New Software Features in Release 12.4(4)XC1
New features are available for Cisco Unified Communications Manager Express (Cisco Unified CME), including the following:
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For more information, see the "Cisco Unified Communications Manager Express 4.0" section.
New Hardware Features in Release 12.4(4)XC
There are no new hardware features in Cisco IOS Release 12.4(4)XC.
New Software Features in Release 12.4(4)XC
The following sections describe the new software features supported by the Cisco 2800 series routers for Cisco IOS Release 12.4(4)XC:
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Call Detail Records (CDR) Feature Correlation ID for Supplementary Features
This feature captures additional information in CDRs for voice calls that are transferred or forwarded on phones controlled by Cisco Unified Communications Manager Express (CME) or Cisco Unified Survivable Remote Site Telephony (SRST). It includes a unique correlation ID that identifies a given call feature across all legs in a call. CDR information can be output in RADIUS VSAs or system log (syslog) messages. For more information about this feature, go to the following URL:
http://www.cisco.com/en/US/docs/ios/12_4t/12_4t11/ht_fcid.html
Cisco Unified Communications Manager Express 4.0
Cisco Unified Communications Manager Express 4.0 (Cisco Unified CME 4.0) delivers a number of next-generation telephony features that expand system capabilities and provide key productivity enhancements.
With this release, the product name has been changed to Cisco Unified Communications Manager Express to underscore its position as a member of the Cisco Unified Communications family of products.
New features and expanded capabilities are introduced in the following areas:
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For details about new features, see the "Feature History" chapter of the Cisco Unified Communications Manager Express System Administrator Guide at:
http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/admin/configuration/guide/cmeroad.htmlFor links to all Cisco Unified Communications Manager Express documents, see:
http://www.cisco.com/en/US/products/sw/voicesw/ps4625/tsd_products_support_series_home.htmlCisco Unified Survivable Remote Site Telephony 4.0
Cisco Unified Survivable Remote Site Telephony (SRST) 4.0 adds these features to the Cisco 2800 series routers in Cisco IOS Release 12.4(4)XC:
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For more information about these features, go to http://www.cisco.com/en/US/products/sw/voicesw/ps2169/products_configuration_guide_chapter09186a00806672f6.html#wp1048642.
Customizable PSTN Tones and H.323 Call-Disconnect Cause Codes
The Customizable PSTN Tones and H.323 Call-Disconnect Cause Codes featurette enables you to customize PSTN tones and H.323 call-disconnect cause codes for certain disconnect scenarios. Specifically, you can customize the following:
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In addition, you can specify the mechanism for detecting media inactivity (silence) on a voice call: Real-Time Transport Protocol (RTP), RTP Control Protocol (RTCP), or both.
H.323 VoIP Call Preservation Enhancements for WAN Link Failures
Changes made to the Cisco IOS H.323 voice gateway and Cisco Unified Communications ManagerExpress in support of this feature make it possible to preserve calls when the WAN link flaps, resulting in a temporary TCP connection loss between the Cisco Unified Communications Manager Express and an IP phone or Cisco IOS H.323 voice gateway located in a remote site or branch office location.
Integrated Services
This feature allows data PRI services (dial-in, dial-on-demand routing [DDR], and DDR backup) to occur on top of voice-enabled PRI interfaces, and adds multilevel precedence and preemption (MLPP) capability for DDR calls over the active voice call when no idle channel is available during the DDR call setup.
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For more information about the Integrated Services feature, see the Integrating Data and Voice Services for ISDN PRI Interfaces on Multiservice Access Routers document at:
http://www.cisco.com/en/US/docs/ios/12_4t/12_4t11/intserv.html
SCCP Analog (FXS) Ports
This feature provides Cisco IOS software support to enable Skinny Client Control Protocol (SCCP) supplementary features on analog FXS ports on a Cisco voice gateway under the control of Cisco Unified Communications Manager or a Cisco Unified Communications Manager Express (Cisco Unified CME) system. This feature is now supported on Cisco 280x and Cisco 380x platforms in Cisco IOS Release 12.4(4)XC. For more information, see:
http://www.cisco.com/en/US/docs/ios/12_4t/12_4t2/ht1vg224.html
SCCP PLAR with DTMF Out Pulse Digits for FXS Analog Phones
This feature provides private line automatic ring-down (PLAR) support for Skinny Client Control Protocol (SCCP) analog ports on a Cisco ISR voice gateway under the control of Cisco Unified Communications Manager or a Cisco Unified Communications Manager Express (Cisco Unified CME) system.
Secure Communication Between IP-STE Endpoint and Lineside STE Endpoint
This feature allows Secure Telephone Equipment (STE) and Secure Telephone Units (STUs) to encrypt voice and data streams with government proprietary algorithms (Type-1 encryption). To provide support for the legacy STEs & STUs and newer IP-STE, Cisco gateways support voice and data in secure and non-secure modes within the IP network and can pass calls to/from government TDM voice networks. This features allows analog STUs (Secure Telephony Units) and analog/BRI STEs (Secure Terminal equipment) to communicate in secure mode using v.150.1 modem relay. This feature provides the support for modem relay on gateways to the line side.
Secure Communication Between IP-STE Endpoint and Trunkside STE Endpoint
This feature enables encrypted and decrypted calls from an IP-STE controlled by Cisco Unified Communications Manager through a voice gateway to an STE in the Defense Switch Network (DSN). This project implements a subset of the v.150.1 modem relay standard.
Video Support for SCCP-Based Endpoints
The Video Support for SCCP-Based Endpoints feature adds video support for Cisco Unified Communications Manager Express to maintain close feature parity with Cisco Unified Communications Manager. This feature allows you to pass a video stream with a voice call between video-capable SCCP endpoints and between SCCP and H.323 endpoints. Through the Cisco Unified CME router, the video-capable endpoints can communicate with each other locally to a remote H.323 endpoint through a gateway or through an H.323 network.
For information about video support in Cisco Unified Communications Manager Express, see the "Video Support for SCCP-Based Endpoints" chapter in the Cisco Communications Manager Express System Administrator Guide at:
http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/admin/configuration/guide/cmevideo.htmlLimitations and Restrictions
There are no known limitations or restrictions.
Caveats
For general information on caveats and the bug toolkit, see About Cisco IOS Release Notes located at: http://www.cisco.com/en/US/docs/ios/12_4/12_4x/12_4xy15/ReleaseNote.html.
This section contains the following caveat information:
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Resolved Caveats - Cisco IOS Release 12.4(4)XC7
CSCec12299Devices running Cisco IOS versions 12.0S, 12.2, 12.3 or 12.4 and configured for Multiprotocol Label Switching (MPLS) Virtual Private Networks (VPNs) or VPN Routing and Forwarding Lite (VRF Lite) and using Border Gateway Protocol (BGP) between Customer Edge (CE) and Provider Edge (PE) devices may permit information to propagate between VPNs.
Workarounds are available to help mitigate this vulnerability.
This issue is triggered by a logic error when processing extended communities on the PE device.
This issue cannot be deterministically exploited by an attacker.
Cisco has released free software updates that address these vulnerabilities. Workarounds that mitigate these vulnerabilities are available.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20080924-vpn.shtml.
CSCsd81407Multiple voice-related vulnerabilities are identified in Cisco IOS software, one of which is also shared with Cisco Unified Communications Manager. These vulnerabilities pertain to the following protocols or features:
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Cisco has made free software available to address these vulnerabilities for affected customers. Fixed Cisco IOS software listed in the Software Versions and Fixes section contains fixes for all vulnerabilities mentioned in this advisory.
There are no workarounds available to mitigate the effects of any of the vulnerabilities apart from disabling the protocol or feature itself.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20070808-IOS-voice.shtml
CSCsi80749Multiple voice-related vulnerabilities are identified in Cisco IOS software, one of which is also shared with Cisco Unified Communications Manager. These vulnerabilities pertain to the following protocols or features:
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Cisco has made free software available to address these vulnerabilities for affected customers. Fixed Cisco IOS software listed in the Software Versions and Fixes section contains fixes for all vulnerabilities mentioned in this advisory.
There are no workarounds available to mitigate the effects of any of the vulnerabilities apart from disabling the protocol or feature itself.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20070808-IOS-voice.shtml
CSCsg70474Multiple voice-related vulnerabilities are identified in Cisco IOS software, one of which is also shared with Cisco Unified Communications Manager. These vulnerabilities pertain to the following protocols or features:
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Cisco has made free software available to address these vulnerabilities for affected customers. Fixed Cisco IOS software listed in the Software Versions and Fixes section contains fixes for all vulnerabilities mentioned in this advisory.
There are no workarounds available to mitigate the effects of any of the vulnerabilities apart from disabling the protocol or feature itself.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20070808-IOS-voice.shtml
CSCsi60004Multiple voice-related vulnerabilities are identified in Cisco IOS software, one of which is also shared with Cisco Unified Communications Manager. These vulnerabilities pertain to the following protocols or features:
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Cisco has made free software available to address these vulnerabilities for affected customers. Fixed Cisco IOS software listed in the Software Versions and Fixes section contains fixes for all vulnerabilities mentioned in this advisory.
There are no workarounds available to mitigate the effects of any of the vulnerabilities apart from disabling the protocol or feature itself.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20070808-IOS-voice.shtml
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A device running Cisco IOS software that has Internet Protocol version 6 (IPv6) enabled may be subject to a denial of service (DoS) attack. For the device to be affected by this vulnerability the device also has to have certain Internet Protocol version 4 (IPv4) User Datagram Protocol (UDP) services enabled. To exploit this vulnerability an offending IPv6 packet must be targeted to the device. Packets that are routed throughout the router can not trigger this vulnerability. Successful exploitation will prevent the interface from receiving any additional traffic. The only exception is Resource Reservation Protocol (RSVP) service, which if exploited, will cause the device to crash. Only the interface on which the vulnerability was exploited will be affected.
Cisco is providing fixed software to address this issue. There are workarounds available to mitigate the effects of the vulnerability.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20080326-IPv4IPv6.shtml.
CSCsg96319 reverse ssh eliminated telnet authentication on VTYSymptom When a reverse SSH session is established with valid authentication credentials, anyone can obtain unprivileged Telnet access to a system without being authenticated. This situation affects only reverse SSH sessions when a connection is made with the
ssh -l userid :number ip-address command.
Conditions
http://www.cisco.com/en/US/products/ps6350/products_configuration_guide_chapter09186a00804831b6.html
Workaround
http://www.cisco.com/en/US/tech/tk583/tk617/technologies_q_and_a_item09186a0080267e0f.shtml#newq1
CSCsg40567 Memory leak found with malformed tls/ssl packets in http core processSymptom Malformed SSL packets may cause a router to leak multiple memory blocks.
Conditions
Workaround
CSCsg03449 Etherswitch module VLAN Trunking Protocol VulnerabilitiesSymptom
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Further Information: On the 13th September 2006, Phenoelit Group posted an advisory containing three vulnerabilities:
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These vulnerabilities are addressed by Cisco IDs:
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CSCsj44099 Router crashes if DSPFARM profile description is 128 characters long.Symptom A cisco c3800 router can experience a memory corruption resulting in a crash if the description field under the "dspfarm profile" configuration matches the maximum of 128 characters.
Conditions
Workaround
CSCse05736 A router running RCP can be reloaded with a specific packetSymptom A router that is running RCP can be reloaded by a specific packet.
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CSCec12299 Corruption of ext communities when receiving over ipv4 EBGP sessionSymptom EIGRP-specific Extended Community 0x8800 is corrupted and shown as 0x0:0:0.
Conditions
ASBR/PE-1 <----> VRF-to-VRF <----> ASBR/PE-2
Workaround
router bgp 1address-family ipv4 vrf oneneighbor 1.0.0.1 remote-as 100neighbor 1.0.0.1 activateneighbor 1.0.0.1 route-map FILTER inexit-address-family!ip extcommunity-list 100 permit _RT.*_!!route-map FILTER permit 10set extcomm-list 100 delete!CSCse24889 Malformed SSH version 2 packets may cause processor memory depletionSymptom Malformed SSH version 2 packets may cause a memory leak, causing the platform to operate under a degraded condition. Under rare circumstances, the platform may reload to recover itself.
Conditions
Workaround
config tip ssh version 1endAlternate Workaround: Permit only known trusted hosts and/or networks to connect to the router by creating a vty access list, as in the following example:
Workaround
10.1.1.0/24 is a trusted network thatis permitted access to the router, allother access is deniedaccess-list 99 permit 10.1.1.0 0.0.0.255access-list 99 deny anyline vty 0 4access-class 99 inendFurther Problem Description: For information about configuring vty access lists, see the Controlling Access to a Virtual Terminal Line document: http://www.cisco.com/en/US/products/ps6441/products_configuration_guide_chapter09186a0080716ec2.html. For information about SSH, see the Configuring Secure Shell on Routers and Switches Running Cisco IOS document: /en/US/tech/tk583/tk617/technologies_tech_note09186a00800949e2.shtml
CSCsc40493 Lengthy PADR frame could crash PPPoE BRAS
Symptom A PPPoE aggregation server (BRAS) may reset when receiving a malformed PPPoE message.
Conditions
Workaround
CSCsh53643 mbar/isync compiler automation (No RNE available)
CSCsh77241 Reverting the compiler back to c2.95.3-p11b (No RNE available)
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A vulnerability in the Cisco implementation of Multicast Virtual Private Network (MVPN) is subject to exploitation that can allow a malicious user to create extra multicast states on the core routers or receive multicast traffic from other Multiprotocol Label Switching (MPLS) based Virtual Private Networks (VPN) by sending specially crafted messages.
Cisco has released free software updates that address this vulnerability. Workarounds that mitigate this vulnerability are available.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml.
Open Caveats - Cisco IOS Release 12.4(4)XC7
There are no open caveats in this release.
Resolved Caveats - Cisco IOS Release 12.4(4)XC6
CSCsf30058Multiple voice-related vulnerabilities are identified in Cisco IOS software, one of which is also shared with Cisco Unified Communications Manager. These vulnerabilities pertain to the following protocols or features:
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Cisco has made free software available to address these vulnerabilities for affected customers. Fixed Cisco IOS software listed in the Software Versions and Fixes section contains fixes for all vulnerabilities mentioned in this advisory.
There are no workarounds available to mitigate the effects of any of the vulnerabilities apart from disabling the protocol or feature itself.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20070808-IOS-voice.shtml
CSCsb40304Cisco IOS device may crash while processing malformed Secure Sockets Layer (SSL) packets. In order to trigger these vulnerabilities, a malicious client must send malformed packets during the SSL protocol exchange with the vulnerable device.
Successful repeated exploitation of any of these vulnerabilities may lead to a sustained Denial-of-Service (DoS); however, vulnerabilities are not known to compromise either the confidentiality or integrity of the data or the device. These vulnerabilities are not believed to allow an attacker will not be able to decrypt any previously encrypted information.
Cisco IOS is affected by the following vulnerabilities:
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Cisco has made free software available to address these vulnerabilities for affected customers. There are workarounds available to mitigate the effects of these vulnerabilities.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20070522-SSL.shtml.
Note
A combined software table for Cisco IOS is available to aid customers in choosing a software releases that fixes all security vulnerabilities published as of May 22, 2007. This software table is available at the following link: http://www.cisco.com/warp/public/707/cisco-sa-20070522-cry-bundle.shtml.
CSCsd85587A vulnerability has been discovered in a third party cryptographic library which is used by a number of Cisco products. This vulnerability may be triggered when a malformed Abstract Syntax Notation One (ASN.1) object is parsed. Due to the nature of the vulnerability it may be possible, in some cases, to trigger this vulnerability without a valid certificate or valid application-layer credentials (such as a valid username or password).
Successful repeated exploitation of any of these vulnerabilities may lead to a sustained Denial-of-Service (DoS); however, vulnerabilities are not known to compromise either the confidentiality or integrity of the data or the device. These vulnerabilities are not believed to allow an attacker will not be able to decrypt any previously encrypted information.
The vulnerable cryptographic library is used in the following Cisco products:
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This vulnerability is also being tracked by CERT/CC as VU#754281.
Cisco has made free software available to address this vulnerability for affected customers. There are no workarounds available to mitigate the effects of the vulnerability.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20070522-crypto.shtml.
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CSCsd92405Cisco IOS device may crash while processing malformed Secure Sockets Layer (SSL) packets. In order to trigger these vulnerabilities, a malicious client must send malformed packets during the SSL protocol exchange with the vulnerable device.
Successful repeated exploitation of any of these vulnerabilities may lead to a sustained Denial-of-Service (DoS); however, vulnerabilities are not known to compromise either the confidentiality or integrity of the data or the device. These vulnerabilities are not believed to allow an attacker will not be able to decrypt any previously encrypted information.
Cisco IOS is affected by the following vulnerabilities:
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Cisco has made free software available to address these vulnerabilities for affected customers. There are workarounds available to mitigate the effects of these vulnerabilities.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20070522-SSL.shtml.
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A combined software table for Cisco IOS is available to aid customers in choosing a software releases that fixes all security vulnerabilities published as of May 22, 2007. This software table is available at the following link: http://www.cisco.com/warp/public/707/cisco-sa-20070522-cry-bundle.shtml
CSCek48162: TDM cross connects before last call disconnect and assertionsSymptom : Under heavy stress few tdm assertion failures are seen
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Workaround: There is no workaround
CSCek51075: Assertion failures at tdm_local_endpoints_connect CSCek61570 Trunk dn stuck in seize/seize state and does not recover.Symptom : Few assertions may be seen during bootup and for the first set of calls. This does not have any effect on the system.
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Workaround
CSCsb25337:Unnecessary tcp ports opened in default router config Cisco devices running IOS that support voice and are not configured for Session Initiated Protocol (SIP), are vulnerable to a crash. However, these devices are isolated to traffic destined to User Datagram Protocol (UDP) 5060. Devices which are properly configured for SIP processing are not vulnerable to this issue.Workaround
CSCsc72722: CBAC-firewall resets TCP idle timer upon receiving invalid TCP packetsSymptom : TCP connections that are opened through a Cisco IOS Firewall (CBAC) may not timeout.
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Workaround
CSCsd91454: One way voice traffic due to incorrect IPHC(UDP) Di0: CS 1 IPCRCSymptom : Voice traffic is dropped in one direction due to IPHC IPCRC error.
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Workaround
CSCsd92405: Router crashes on receipt of repeated SSL connection with malformed finished messageSymptom : A router crashes when receiving multiple malformed TLS and/or SSL3 finished messages. A valid user name and password are not required for the crash to occur.
Conditions
Workaround
CSCse58397: ISDN BRI Dialer Interface is always in up stateSymptom : ISDN B channels are in UP state
Conditions
Workaround
CSCsf28515: Crashes at mars_default_port_dsp_connectSymptom : Router crashes at mars_default_port_dsp_connect after call passes through the digital voice-port.
Workaround
CSCsf28711: 5850 reloads unexpectedly on making a single call CSCsf28840 crash due to configured peer type control vectorSymptom : Active eRSC reloads with traceback when first (PRI/SS7)call is made.
Conditions
Workaround
CSCsg16908: IOS FTP Server DeprecationCSCsg46546: Erroneous alerting during pickup with CSCek58324. Call focus is wrong after picking up a trunk dnSymptom : After an attempt to pick up an onhold trunk dn, the call display on the ephone which puts this DN to onhold is messed up. The call can not be picked up successfully by other phone and it becomes the focus one on the phone. The connected trunk dn can not be displayed and other incoming call can not be put on hold.
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Workaround
CSCsg47834: NACK is observed for Open Voice Channel commandSymptom : NACK message may be received from 5510 DSP in response to Open Voice Channel command sent by the IOS.
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Workaround
2) Make sure that the Trans coding and Voice Termination are on different DSP(s). This can be performed by configuring the maximum number of trans coding sessions to a value such that it would require a multiple of 240 DSP credits. Example 1:
In the following configuration each trans coding session (complexity=high) will require 40 DSP credits. In order to use a multiple of 240 credits, we need to set the maximum trans coding sessions to 6 (6 * 40 = 240) or any multiple of 6.dspfarm profile 1 trans codecodec g711ulawcodec g729r8associate application SCCPRouter(conf-t)#dspfarm profile 1 transcodeRouter(config-dspfarm-profile)#maximum sessions 6Example 2:
In the following configuration each transcoding session (complexity=medium) will require 30 DSP credits. In order to use a multiple of 240 credits, we need to set the maximum trans coding sessions to 8 (8 * 30 = 240) or any multiple of 8.dspfarm profile 2 trans codecodec g711ulawcodec g711alawcodec g729ar8codec g729abr8associate application SCCPRouter(conf-t)#dspfarm profile 2 transcodeRouter(config-dspfarm-profile)#maximum sessions 8Use "show voice dsp group all" command to verify DSP resource allocation.Note: Each 5510 DSP has 240 Credits. This work-around cannot be implemented if the router has only one PVDM2-16 which has only one DSP.
CSCsg59037: 851/871 cannot upgrade rommon from IOSSymptom : Cisco 851 and 871 routers have no way to remotely upgrade the ROMMON firmware image.
Conditions
Workaround
http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124tcr/tcf_r/cf_13ht.htm#wp1032550
CSCsg66096: Privacy ON: call onhold can be intercepted by directed pickup operationCSCsg66846: TNP phones opening new call when selecting shared transferring lineCSCsg68199: Trunk DN offhook is not propagated to a phone already in dial out modeSymptom : Two IP Phones A and B are registered with Cisco Unified Communications Manager Express; these phones share two trunk DNs 1 & 2. If Phone-A goes offhook on DN-1 and Phone-B immediately goes offhook on DN-2. This condition should show the DN-2 button on Phone-A as busy which is not happening.
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Workaround
CSCsg68711: Incoming call in background does not ring after transfer commitSymptom : Phone does not ring for the second incoming call after committing transfer at alert for the first call.
Conditions
Workaround
CSCsg70221: DTMF through the hairpin of a trunk DN does not workSymptom : DTMF tones are being suppressed to prevent duplicate DTMF tones from being extended to an SCCP controlled VG224 port. This problem is a direct result of a fix implemented for correct CSCsf98754. The lack of DTMF prevents IVR devices from working correctly.
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