Table Of Contents

Feature Information for Enterprise Application Interoperability for H.323-to-SIP and SIP-to-SIP

Feature Information for Enterprise Application Interoperability for H.323-to-SIP and SIP-to-SIP

Table 1 lists the release history for this chapter.

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Note Table 1 lists only the Cisco IOS software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

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Table 1 Feature Information for Enterprise Application Interoperability for H.323-to-SIP and SIP-to-SIP Features 

Feature Name	Releases	Feature Information
Expires Timer Reset on Receiving or Sending SIP 183 Message	Cisco IOS XE Release 3.1S	This feature enables support for resetting the Expires timer upon receipt of SIP 183 messages on Cisco Unified Communications Manager Express (Cisco Unified CME), a Cisco IOS voice gateway, or a Cisco Unified Border Element (Cisco UBE). The following commands were modified in this feature: reset timer expires and voice-class sip reset timer expires
SIP 181 Call is Being Forwarded Message	Cisco IOSXE Release 3.1S	This feature allows users to configure support for SIP 181 Call is Being Forwarded messages either globally or on a specific dial-peer. This feature includes the following new or modified commands: bock, voice-class sip block, map resp-code, voice-class sip map.

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