Opened 10 years ago

Last modified 10 years ago

#1079 closed defect

Media transport should be kept alive during double-hold scenario — at Version 1

Reported by: bennylp Owned by: bennylp
Priority: normal Milestone: release-1.7
Component: pjsua-lib Version: trunk
Keywords: sipit26 Cc:
Backport to 1.x milestone: Backported:

Description (last modified by bennylp)

In double hold situation, media will be marked as a=inactive, and currently the media will be closed. This would cause the media transport to be reinitialized when the stream is resumed.

There are two known possible failures with this behavior, with ICE and SRTP. With ICE, we unnecessarily restart ICE negotiation, which will fail if remote still has the ICE session intact. And similarly this will cause inconsistent states between local and remote SRTP endpoints if only one side restarts the session.

More over, we should keep sending keep-alive packets even when the media is marked as inactive. This would be the argument to keep ICE session alive when media is inactive.

Change History (1)

comment:1 Changed 10 years ago by bennylp

  • Description modified (diff)
  • Summary changed from ICE session should be kept alive even when media is marked as inactive to Media transport should be kept alive during double-hold scenario
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