Table Of Contents
Release Notes for Cisco IP/VC 3526 PRI Gateway and Cisco IP/VC 3540 PRI Gateway Release 3.0
January 14, 2005
This release note describes the new features and known issues for the Cisco IP/VC 3526 PRI Gateway and Cisco IP/VC 3540 PRI Gateway Release 3.0. Use this release note with the Cisco IP/VC 3526 PRI Gateway and Cisco IP/VC 3540 PRI Gateway Module Administrator Guide, 2.0.
For regulatory and compliance information, see Regulatory Compliance and Safety Information for the Cisco IP/VC 3500 Products.
This document include the following sections:
Cisco IP/VC 3526 PRI Gateway and Cisco IP/VC 3540 PRI Gateway perform protocol translation that allows H.323 endpoints on a LAN to communicate with H.320 endpoints on the public switched telephone network (PSTN). The Cisco IP/VC 3526 PRI Gateway and Cisco IP/VC 3540 PRI Gateway support PRI ISDN interfaces.
Table 1contains an overview of the related documentation for the Cisco IP/VC 3526 and Cisco IP/VC 3540. Use this information to access and order the latest versions of the documentation as described in the "Obtaining Documentation" section.
New and Changed Information
Release 3.0 includes the following new features:
•Support for the H.264 video codec.
•The gateway can detect in-band DTMF tones on the ISDN side and generate corresponding H.245 out-of-band signals on the IP side for both voice and video calls.
•Support for a new default Quality of Service option for optimal TOS setting selection.
To ensure that your gateway is secure from outside infiltration, we recommend that you change the default settings of the following options:
•Gateway user name and password
•SNMP service community parameters in the Board Basics tab
•We recommend that you use Microsoft Explorer version 5.0 or later.
•The Ethernet port may stop responding if disconnected and then reconnected when there are active calls in the gateway. To restore Ethernet port functionality, reset the gateway.
•The Max Digits and Maximum Digits Send fields in the ISDN Information section of the PRI Port tabs are for future use.
•DTMF interpretation problems occur when using the G.723.1 audio channel in gateway-to-MCU voice calls. Use the Force711ForMCU enable advanced command to configure the gateway to open a G.711 channel only. This setting is enabled by default when the gateway is shipped with transcoders. When the gateway has no transcoders or when transcoder capabilities are disabled, disable the setting by using the Force711ForMCU disable advanced command.
•Some PSTN switches react slowly to a "busy out [off]" request message sent from the gateway when the ISDN Rollover feature is in use. As a result, dialing from the ISDN side may return a busy tone immediately after the "busy out [off]" request message is sent to the switch. In such cases, calls do not reach the gateway, and additional dialing is required.
•You must disable G.722.1 when working with TANDBERG endpoints that are running software version 7.x when used with IVR on 128 Kbps calls. To do this, uncheck the Enable G.722.1 option in the Media Modes section of the Gateway Settings tab.
•You must disable G.722 when working with Aethra Vega 2 endpoints that are running software version 2.182. To do this, uncheck the Enable G.722 option in the Media Modes section of the Gateway Settings tab.
•FECC works with Sony, Polycom, and TANDBERG endpoints only.
•B-channels released on a downspeeding event during incoming Call Setup will not be available for new calls until the call on which the downspeeding event took place terminates.
•When working with endpoints that do not support Fast Start, ensure that the default unchecked setting is selected for the Support H.323 Fast Start on voice-only call setup option in the Advanced section of the Settings tab.
•The gateway may not register properly to the Polycom Path Navigator gatekeeper. To enable successful registration, remove all services from the gateway, register to Path Navigator, and then reconfigure the services on the gateway.
•When using TANDBERG 6000 with software version B9.0 on the ISDN side, bonded calls over 8B (512 Kbps) may not connect when dialing from the IP side. Contact Cisco Technical Assistance Center (TAC) for assistance if you experience this problem.
•G.723.1 coding does not work well with Sony PCS-1 on the IP side. To work with PCS-1, disable the G.723.1transcoding option.
•Calls will not connect when using H.264 with VCON Escort/Cruiser version 4.6 on the ISDN side. To work with Escort/Cruiser version 4.6, disable the H.264 video codec.
•Video channels may not open successfully when using the VCON 5000 on the ISDN side.
Open and resolved caveats are no longer listed in release notes. Instead, the latest information about caveats is available through an online tool, Bug Toolkit, for customers to query defects according to their own needs.
To find new features or enhancements that have been added to a release or to read about caveat fixes from previous releases, you should run a query whenever a new Cisco IP/VC 3526 PRI Gateway or Cisco IP/VC 3540 PRI Gateway release is distributed.
To access Bug Toolkit, you must have an Internet connection and a Web browser, as well as a Cisco.com username and password.
To use Bug Toolkit, follow this procedure.
Step 1 Go to http://www.cisco.com/pcgi-bin/Support/Bugtool/launch_bugtool.pl and log in to Bug Toolkit by entering your Cisco.com user name and password.
Step 2 Click Launch Bug Toolkit.
Step 3 To find a specific caveat, enter the ID number in the Enter known bug ID field and click Search.
Bug Toolkit returns the caveat information for which you queried.
To view all caveats, go to the Search for bugs in other Cisco software and hardware products section, enter Cisco IP/VC 3500 Series Videoconferencing Products in the Product Name field, and click Next.
The Bug Toolkit search page appears.
Step 4 Select the filters to query for caveats. You can choose any or all of the available options.
Step 5 Click Next.
Bug Toolkit returns a list of caveats based on your query.
Cisco documentation and additional literature are available on Cisco.com. Cisco also provides several ways to obtain technical assistance and other technical resources. These sections explain how to obtain technical information from Cisco Systems.
You can access the most current Cisco documentation at this URL:
You can access the Cisco website at this URL:
You can access international Cisco websites at this URL:
Cisco documentation and additional literature are available in a Documentation DVD package, which may have shipped with your product. The Documentation DVD is updated regularly and may be more current than printed documentation. The Documentation DVD package is available as a single unit.
Registered Cisco.com users (Cisco direct customers) can order a Cisco Documentation DVD (product number DOC-DOCDVD=) from the Ordering tool or Cisco Marketplace.
Cisco Ordering tool:
You can find instructions for ordering documentation at this URL:
You can order Cisco documentation in these ways:
•Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from the Ordering tool:
•Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco Systems Corporate Headquarters (California, USA) at 408 526-7208 or, elsewhere in North America, by calling 1 800 553-NETS (6387).
You can send comments about technical documentation to email@example.com.
You can submit comments by using the response card (if present) behind the front cover of your document or by writing to the following address:
Attn: Customer Document Ordering
170 West Tasman Drive
San Jose, CA 95134-9883
We appreciate your comments.
Cisco Product Security Overview
Cisco provides a free online Security Vulnerability Policy portal at this URL:
From this site, you can perform these tasks:
•Report security vulnerabilities in Cisco products.
•Obtain assistance with security incidents that involve Cisco products.
•Register to receive security information from Cisco.
A current list of security advisories and notices for Cisco products is available at this URL:
If you prefer to see advisories and notices as they are updated in real time, you can access a Product Security Incident Response Team Really Simple Syndication (PSIRT RSS) feed from this URL:
Reporting Security Problems in Cisco Products
Cisco is committed to delivering secure products. We test our products internally before we release them, and we strive to correct all vulnerabilities quickly. If you think that you might have identified a vulnerability in a Cisco product, contact PSIRT:
•Emergencies — firstname.lastname@example.org
•Nonemergencies — email@example.com
Tip We encourage you to use Pretty Good Privacy (PGP) or a compatible product to encrypt any sensitive information that you send to Cisco. PSIRT can work from encrypted information that is compatible with PGP versions 2.x through 8.x.
Never use a revoked or an expired encryption key. The correct public key to use in your correspondence with PSIRT is the one that has the most recent creation date in this public key server list:
In an emergency, you can also reach PSIRT by telephone:
•1 877 228-7302
•1 408 525-6532
Obtaining Technical Assistance
For all customers, partners, resellers, and distributors who hold valid Cisco service contracts, Cisco Technical Support provides 24-hour-a-day, award-winning technical assistance. The Cisco Technical Support Website on Cisco.com features extensive online support resources. In addition, Cisco Technical Assistance Center (TAC) engineers provide telephone support. If you do not hold a valid Cisco service contract, contact your reseller.
Cisco Technical Support Website
The Cisco Technical Support Website provides online documents and tools for troubleshooting and resolving technical issues with Cisco products and technologies. The website is available 24 hours a day, 365 days a year, at this URL:
Access to all tools on the Cisco Technical Support Website requires a Cisco.com user ID and password. If you have a valid service contract but do not have a user ID or password, you can register at this URL:
Note Use the Cisco Product Identification (CPI) tool to locate your product serial number before submitting a web or phone request for service. You can access the CPI tool from the Cisco Technical Support Website by clicking the Tools & Resources link under Documentation & Tools. Choose Cisco Product Identification Tool from the Alphabetical Index drop-down list, or click the Cisco Product Identification Tool link under Alerts & RMAs. The CPI tool offers three search options: by product ID or model name; by tree view; or for certain products, by copying and pasting show command output. Search results show an illustration of your product with the serial number label location highlighted. Locate the serial number label on your product and record the information before placing a service call.
Submitting a Service Request
Using the online TAC Service Request Tool is the fastest way to open S3 and S4 service requests. (S3 and S4 service requests are those in which your network is minimally impaired or for which you require product information.) After you describe your situation, the TAC Service Request Tool provides recommended solutions. If your issue is not resolved using the recommended resources, your service request is assigned to a Cisco TAC engineer. The TAC Service Request Tool is located at this URL:
For S1 or S2 service requests or if you do not have Internet access, contact the Cisco TAC by telephone. (S1 or S2 service requests are those in which your production network is down or severely degraded.) Cisco TAC engineers are assigned immediately to S1 and S2 service requests to help keep your business operations running smoothly.
To open a service request by telephone, use one of the following numbers:
Asia-Pacific: +61 2 8446 7411 (Australia: 1 800 805 227)
EMEA: +32 2 704 55 55
USA: 1 800 553-2447
For a complete list of Cisco TAC contacts, go to this URL:
Definitions of Service Request Severity
To ensure that all service requests are reported in a standard format, Cisco has established severity definitions.
Severity 1 (S1)—Your network is "down," or there is a critical impact to your business operations. You and Cisco will commit all necessary resources around the clock to resolve the situation.
Severity 2 (S2)—Operation of an existing network is severely degraded, or significant aspects of your business operation are negatively affected by inadequate performance of Cisco products. You and Cisco will commit full-time resources during normal business hours to resolve the situation.
Severity 3 (S3)—Operational performance of your network is impaired, but most business operations remain functional. You and Cisco will commit resources during normal business hours to restore service to satisfactory levels.
Severity 4 (S4)—You require information or assistance with Cisco product capabilities, installation, or configuration. There is little or no effect on your business operations.
Obtaining Additional Publications and Information
Information about Cisco products, technologies, and network solutions is available from various online and printed sources.
•Cisco Marketplace provides a variety of Cisco books, reference guides, and logo merchandise. Visit Cisco Marketplace, the company store, at this URL:
•Cisco Press publishes a wide range of general networking, training and certification titles. Both new and experienced users will benefit from these publications. For current Cisco Press titles and other information, go to Cisco Press at this URL:
•Packet magazine is the Cisco Systems technical user magazine for maximizing Internet and networking investments. Each quarter, Packet delivers coverage of the latest industry trends, technology breakthroughs, and Cisco products and solutions, as well as network deployment and troubleshooting tips, configuration examples, customer case studies, certification and training information, and links to scores of in-depth online resources. You can access Packet magazine at this URL:
•iQ Magazine is the quarterly publication from Cisco Systems designed to help growing companies learn how they can use technology to increase revenue, streamline their business, and expand services. The publication identifies the challenges facing these companies and the technologies to help solve them, using real-world case studies and business strategies to help readers make sound technology investment decisions. You can access iQ Magazine at this URL:
•Internet Protocol Journal is a quarterly journal published by Cisco Systems for engineering professionals involved in designing, developing, and operating public and private internets and intranets. You can access the Internet Protocol Journal at this URL:
•World-class networking training is available from Cisco. You can view current offerings at this URL:
This document is to be used in conjunction with the documents listed in the "Documentation Roadmap" section.