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Cisco IOS H.323 Feature List
Table 1 lists H.323 features by Cisco IOS release. Features that are introduced in a particular release are available in that and subsequent releases.
Provides additional security for H.323 networks by introducing the ability to validate intradomain and interdomain gatekeeper-to-gatekeeper LRQ messages on a per-hop basis. When used in conjunction with per-call security using IZCT, protects network resources from attackers and prevents security holes.
H.323 Dual Tone Multifrequency Relay Using Named Telephone Events
Enhances interoperability of Cisco gateways with equipment from other vendors by implementing H245v7 extensions to support RFC2833 in-band audio telephone events and in-band audio tones as well as support for asymmetrical RTP dynamic payload types.
Upgrades Cisco IOS software to comply with the mandatory requirements and several optional features of the version 2 specification. Enhances the existing VoIP gateway and multimedia conference manager gatekeeper and proxy.
1Features that are introduced in a particular release are available in that and subsequent releases.
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