Table of Contents
Release Notes for Cisco IOS Release 12.1(5)YH4Contents
Introduction
System Requirements
Limitations of This Release
New CLI Command: sccp codec
Bug Fixes
Caveats
Related Documentation
Obtaining Documentation
Obtaining Technical Assistance
Release Notes for Cisco IOS Release 12.1(5)YH4
These release notes support Cisco IOS Release 12.1(5)YH4. These release notes have been updated as needed to describe new features, memory requirements, hardware support, software platform deferrals, and changes to the microcode or modem code and related documents.
Last Maintenance Release of Cisco IOS Release 12.1(5)YH
The last maintenance release of the 12.1(5)YH maintenance release is 12.1(5)YH4. The migration path for customers who need bug fixes for the 12.1(5)YH features is the 12.2(13)T3 release. The 12.2(13)T3 release has the complete feature content of 12.1(5)YH and will eventually reach general deployment (GD).
Contents
These release notes describe the following topics:
Introduction
Cisco IOS Release 12.1(5)YH4 is an Early Deployment (ED) release parented to Cisco IOS Release 12.1(5)T and supporting the Cisco VG200. This release provides transcoding and conferencing services for the Cisco VG200 platform. The platform and features delivered with this ED release will be incorporated into Cisco IOS 12.3(1)T and subsequent Cisco IOS 12.2(X)T releases.
The following new features are supported on the Cisco VG200 in Cisco IOS Release 12.1(5)YH4:
These features are of interest to enterprise customers wishing to deploy IP telephony at branch offices using a centralized Cisco CallManager architecture. Providing transcoding and conferencing services at the branch location reduces the utilization of the WAN connection bandwidth for conference calls and point-to-point Voice over IP (VoIP) calls between the branch location and other on-network locations.
This ED supports Cisco CallManager switchover and switchback to provide survivability in the event the primary Cisco CallManager manager fails at the Enterprise location. This release supports the new NM-HDV-FARM network module and allows the Cisco CallManager administrator to configure the network module to support up to 15 six-party conference calls or up to 60 transcoding sessions. The network module is equipped with two digital signal processor (DSP) SIMMs containing three DSPs each and can be expanded up to a total of five DSP SIMMs.
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Note The maximum number of transcoding sessions supported by one DSP or the number of participants allowed in a conference is reduced when compressed codecs are used. (See the "Limitations of This Release" section on.) |
System Requirements
This section describes the system requirements for Cisco IOS Release 12.1 T:
Memory Requirements
At this time, Cisco IOS Release 12.1(5)YH4 supports only the Cisco VG200 hardware platform. The Cisco VG200 comes preconfigured with the required memory resources, which include:
Determining the Software Version
To determine the version of Cisco IOS software running on a Cisco VG200, log in to the router and enter the show version EXEC command:
Upgrading to a New Software Release
For general information about upgrading to a new software release, see the product bulletin, Cisco IOS Upgrade Ordering Instructions located on CCO at:
Service & Support: Software Center: Cisco IOS Software: Product Bulletins: Software
Under General System Software Bulletins, click Cisco IOS Upgrade Ordering Instructions, No. 957
Limitations of This Release
The following are some limitations in the functionality of the current release:
- For transcoding of G.711 or G.729 codecs, each DSP supports a maximum of four sessions (eight streams).
- For transcoding involving one or more voice streams using GSM FR or GSM EFR codecs, each DSP supports a maximum of three sessions (six streams).
- NetMeeting is not supported because it uses a 32-millisecond packetization period.
- This release supports 10-, 20-, and 30-millisecond packetization periods on G.729 codecs for both transcoding and conferencing.
- This release supports 10- and 20-millisecond packetization periods on G.711 codecs for both transcoding and conferencing.
- This release supports only 20-millisecond packetization periods for GSM FR and GSM EFR codecs.
- The software MTP feature is supported as part of the transcoding service. When the transcoding application registers with Cisco CallManager, it reports the maximum number of streams supported to be the total of both the transcoding streams and the software MTP streams (which are configured through the CLI). The range and the default value for the sccp mtp sessions command has been changed. The new range is 1 to 32 sessions, and the default value is 12 sessions.
New CLI Command: sccp codec
Syntax
[no] sccp codec [g711ulaw | g711alaw | g729r8 | g729ar8 | g729br8
g729abr8 | gsmfr | gsmefr] mask
Description
This new CLI command is used to force Cisco Call Manager to select the codec types which are used by the endpoints, not the codec types which are masked.
By default, none of the codec types are masked. The no form of this command will unmask the specified codec types so they are reported during registration.
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Note The change caused by this command takes effect only after the sccp is enabled. If the change is caused while sccp is up and running, sccp should be disabled and then enabled for the change to take effect. |
Bug Fixes
The following reported bugs have been fixed or resolved in Cisco IOS Release 12.1(5)YH4:
CSCdu78763
CSCdu83460
CSCdv15484
CSCdv51806
CSCdv59573
CSCdv63473
CSCdv64815
CSCdw02964
CSCdw02970
CSCdw28983
CSCdw45577
CSCdw46037
CSCdw47637
CSCdw50576
CSCdx06485
CSCdx06492
Caveats
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, and severity 3 and severity 4 caveats are still less serious.
For a list of bugs that have been resolved in this release, see the "Bug Fixes" section.
CSCdu12495
This does not affect the functionality of the conference or transcoding applications. However, once DSP resources are all allocated the next session creation will fail.
CSCdu60270
When a GSM FR party is brought into an ad hoc conference, the endpoint will fail to get into the conference. This will not affect meet-me conferences.
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Note If you have an account with CCO, you can use Bug Navigator II to find caveats of any severity for any release. Click on this path: Software Center: Cisco IOS Software: Cisco IOS Bug Toolkit: Cisco Bug Navigator II. You can also find Bug Navigator II at http://www.cisco.com/support/bugtools |
Related Documentation
The following sections describe the documentation available for the Cisco VG200. 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 CCO and the Documentation CD-ROM.
Use these release notes with these documents:
Release-Specific Documents
The following documents are specific to or support Cisco IOS Release 12.1 T and are located on CCO and the Documentation CD-ROM:
On CCO, begin under the Service & Support heading and follow this path:
Technical Documents: Cisco IOS Software: Release 12.1: Release Notes: Cross-Platform Release Notes
Follow this path on the Documentation CD-ROM:
Cisco IOS Software: Release 12.1: Release Notes: Cross-Platform Release Notes
To reach these documents, refer to the Technical Documents link under Service & Support section on CCO. The product bulletin for Release 12.1(5)YH4 can be found on the following path:
Technical Documents: Product Bulletins: Cisco IOS: 12.1(5)YH4 Product Bulletin
On CCO, begin under the Service & Support heading and follow this path:
Technical Documents: Cisco IOS Software: Release 12.1: Caveats: Caveats for Cisco IOS Release 12.1 T
Follow this path on the Documentation CD-ROM:
Cisco IOS Software: Release 12.1: Caveats: Caveats for Cisco IOS Release 12.1 T
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Note If you have an account with CCO, you can use Bug Navigator II to find caveats of any severity for any release. Click on this path: Software Center: Cisco IOS Software: Cisco IOS Bug Toolkit: Cisco Bug Navigator II. You can also find Bug Navigator II at http://www.cisco.com/support/bugtools |
Platform-Specific Documents
These documents are available for the Cisco VG200 on CCO and the Documentation CD-ROM:
On CCO, begin under the Service & Support heading and follow this path:
Technical Documents: Documentation Home Page: All Voice Products: Gateways: Cisco Voice Gateway 200 (VG200)
Follow this path on the Documentation CD-ROM:
Cisco Product Documentation: All Voice Products: Gateways: Cisco Voice Gateway 200 (VG200
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 which are 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 two books: a configuration guide and a corresponding command reference. Chapters in a configuration guide describe protocols, configuration tasks, 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 CCO and the Documentation CD-ROM, master hot-linked documents provide information for the Cisco IOS software documentation set.
On CCO, beginning under the Service & Support heading:
Technical Documents: Documentation Home Page: Cisco IOS Software: Release 12.1: Cisco IOS Release 12.1 Master Indexes
On the Documentation CD-ROM at:
Cisco IOS Software: Release 12.1: Cisco IOS Release 12.1 Master Indexes
Cisco IO Release 12.1 Documentation Set
Table 1 describes the contents of the Cisco IOS Release 12.1 T software documentation set, which is available in electronic form and in printed form upon request.
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Note You can find the most current Cisco IOS documentation on CCO and the Documentation CD-ROM. These electronic documents may contain updates and modifications made after the hard-copy documents were printed. |
You can reach the Cisco IOS documentation set on CCO, beginning under the Service & Support heading:
Technical Documents: Cisco IOS Software: Release 12.1: Configuration Guides and Command References
You can reach the Cisco IOS documentation set on the Documentation CD-ROM at:
Cisco IOS Software: Release 12.1: Configuration Guides and Command References
Table 1 Cisco IOS Software Release 12.1 Documentation Set
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Note Cisco Management Information Base (MIB) User Quick Reference is no longer published. For the latest list of MIBs supported by Cisco, from CCO, click on the following path: Service & Support: Software Center: Network Management Software: MIB Files. |
Obtaining Documentation
World Wide Web
You can access the most current Cisco documentation on the World Wide Web at http://www.cisco.com.
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. Therefore, it is probably more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.
Ordering Documentation
Registered CCO users can order the Documentation CD-ROM and other Cisco Product documentation through our online Subscription Services at http://www.cisco.com/pcgi-bin/subcat/kaojump.cgi.
Nonregistered CCO users can order documentation through a local account representative by calling Cisco's corporate headquarters (California, USA) at 408 526-4000 or, in North America, call 800 553-NETS (6387).
Obtaining Technical Assistance
Cisco provides Cisco Connection Online (CCO) as a starting point for all technical assistance. Warranty or maintenance contract customers can use the Technical Assistance Center. All customers can submit technical feedback on Cisco documentation using the web, e-mail, a self-addressed stamped response card included in many printed documents, or by sending mail to Cisco.
Cisco Connection Online
Cisco continues to revolutionize how business is done on the Internet. Cisco Connection Online 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.
CCO's broad range of features and services helps customers and partners to streamline business processes and improve productivity. Through CCO, you will find information about Cisco and our networking solutions, services, and programs. In addition, you can resolve technical issues with online support services, 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 CCO to obtain additional personalized information and services. Registered users may order products, check on the status of an order and view benefits specific to their relationships with Cisco.
You can access CCO in the following ways:
You can e-mail questions about using CCO to cco-team@cisco.com.
Technical Assistance Center
The Cisco Technical Assistance Center (TAC) is available to warranty or maintenance contract customers who need technical assistance with a Cisco product that is under warranty or covered by a maintenance contract.
To display the TAC web site that includes links to technical support information and software upgrades and for requesting TAC support, use www.cisco.com/techsupport.
To contact by e-mail, use one of the following:
| Language | E-mail Address |
|---|---|
In North America, TAC can be reached at 800 553-2447 or 408 526-7209. For other telephone numbers and TAC e-mail addresses worldwide, consult the following web site: http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml.
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, for your convenience many documents contain a response card behind the front cover. Otherwise, you can mail your comments to the following address:
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