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Release Notes for Cisco 7000 Family for Cisco IOS Release 12.1 T

78-10811-05

New and Changed Information

Cisco H.323, Version 2, Phase 2

Platforms: Cisco 7200 series routers

Cisco H.323 Version 2, Phase 2 upgrades Cisco IOS software by adding several optional features of the

H.323 Version 2 specification and facilitates customized extensions to the Cisco Gatekeeper.

Cisco H.323 Version 2, Phase 2 adds the following benefits to Cisco H.323 gatekeepers, gateways, and

proxies:

• H.323 Version 2 Fast Connect enables endpoints to establish media channels for audio exchange

without waiting for a separate H.245 connection to be opened.

• H.245 tunneling enables H.245 messages to be encapsulated within Q.931 messages using H.225

(using Fast Connect) without the use of a separate H.245 TCP connection.

• H.450.2 Call Transfer (without consultation) and H450.3 Call Deflection provide a limited subset

of features to support Internet call waiting.

• H.235 security allows only duly authorized and authenticated gateways to access Gatekeeper

resources.

• Translation of Foreign Exchange Station (FXS) hookflash to H.245 user input along with the

previously suggested translation of H.245 user input to Foreign Exchange Office (FXO) hookflash

provides end-to-end hookflash relay in FXS-to-FXO configurations.

• Gatekeeper Transaction Message Protocol (GKTMP) for the Cisco Gatekeeper with a

corresponding user API for the UNIX environment, allows a third party to develop elements to

control and utilize a Gatekeeper for applications beyond what is directly supported in Cisco IOS

Release 12.1(1)T.

• Cisco Gatekeeper supports the Gatekeeper MIB, which allows SNMP management.

• Gateway support for the Alternate Endpoint field in Advanced Communications Function (ACF)

enables third-party gatekeepers to provide more robust call establishment.

• Gateway support for network-based billing number on a per-interface basis enables third-party

gatekeepers to obtain per-call interface usage information for billing or other purposes.

• Gateway support for the voice-port description enables third-party gatekeepers to obtain

customer-specific, per-call interface usage information for billing or other purposes.

COPS for RSVP

Platforms: Cisco 7200 series and Cisco 7500 series routers

Common Open Policy Service (COPS) is a protocol for communicating network traffic policy

information to network devices. Resource Reservation Protocol (RSVP) is a means for reserving

network resources—primarily bandwidth—to guarantee that applications transmitting end-to-end

across the Internet will perform at the desired speed and quality. Combined, COPS with RSVP gives

network managers centralized monitoring and control of RSVP, including the ability to:

• Ensure adequate bandwidth and jitter and delay bounds for time-sensitive traffic such as voice

transmission

• Ensure adequate bandwidth for multimedia applications such as video conferencing and distance

learning

• Prevent bandwidth-hungry applications from delaying top-priority flows or harming the

performance of other applications customarily run over the same network

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