Overview
The Cisco Unified Border Element (CUBE) Mid-call Signaling support aims to reduce the interoperability issues that arise due to consuming mid-call RE-INVITES/UPDATES.
Mid-call Re-INVITEs/UPDATEs can be consumed in the following ways:
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Mid-call Signaling Passthrough - Media Change
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Mid-call Signaling Block
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Mid-call Signaling Codec Preservation
Note |
This feature should be used as a last resort only when there is no other option in CUBE. This is because configuring this feature can break video-related features. For Delay-offer Re-INVITE, the configured codec will be passed as an offer in 200 message to change the codec, the transcoder is added in the answer. |
Note |
H.323 protocol is no longer supported from Cisco IOS XE Bengaluru 17.6.1a onwards. Consider using SIP for multimedia applications. |
Feature Information
The following table provides release information about the feature or features described in this module. This table lists only the 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.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Feature Name |
Releases |
Feature Information |
---|---|---|
Mid-call Re-INVITE Consumption |
Cisco IOS XE 3.6S |
The Mid-call Re-INVITE consumption feature consumes mid-call Re-INVITEs from CUBE and helps to avoid interoperability issues because of these re-invites The following commands were introduced or modified: midcall-signaling . |
Mid-call Codec Preservation |
Cisco IOS XE 3.9S |
The Mid-call Codec Preservation feature helps to disables codec negotiation in the middle of a call and preserves the codec negotiated before the call. The following commands were introduced or modified: midcall-signaling preserve-codec , voice-class sip midcall-signaling preserve-codec . |
Mid-call Re-INVITE Consumption Enhancements |
Cisco IOS XE 3.16S |
Mid-call signaling Re-INVITE consumption is enhanced to support:
|