[asterisk-bugs] [JIRA] (ASTERISK-21945) Bridge API Enhancements - implement IAX2 native bridging (again)

[Matt Jordan (JIRA)]

Matt Jordan created ASTERISK-21945:
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             Summary: Bridge API Enhancements - implement IAX2 native bridging (again)
                 Key: ASTERISK-21945
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-21945
             Project: Asterisk
          Issue Type: Improvement
      Security Level: None
          Components: Channels/chan_iax2, Core/Bridging
            Reporter: Matt Jordan


When Asterisk moved to the new bridging architecture, things that natively bridged became ... no longer natively bridging. In order to restore native bridge capabilities, channel drivers must provide (or have provided for them) a bridging technology that can perform the native bridging tasks.

This was already taken care of for RTP capable channel drivers, and will be taken care of for DAHDI. IAX2 is another channel driver that has its own native bridging capabilities.

With IAX2 native bridging, media is directed out of the signalling path, similar to RTP "directmedia" options in {{chan_sip}} and elsewhere. This requires a bridging 'module' to be registered with the bridging core to handle this.

Since adding this as a separate module would require (a) module dependency nightmares and (b) exporting of public functions from {{chan_iax2}} (ew), {{chan_iax2}} should instead implement a bridging 'module' internally in its own file. The loading of the {{chan_iax2}} module should cause it to register a bridging module with the bridging core.

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