Opened 12 years ago

Closed 12 years ago

#1455 closed defect (fixed)

Incoming re-INVITE is unhandled if it comes in CONNECTING state (thanks Olle Frimanson for the report)

Reported by: bennylp Owned by: bennylp
Priority: normal Milestone: release-1.14
Component: pjsip Version: common
Keywords: Cc:
Backport to 1.x milestone: Backported:

Description (last modified by bennylp)

An incoming re-INVITE request will be ignored/unhandled if it is received while the invite session is in CONNECTING state (i.e. waiting for ACK from peer).

The correct behavior according to RFC 5407 (section ​3.1.4) is as follows:

  • if the current offer-answer has completed, the re-INVITE should be accepted with 200/OK.
  • if the current offer-answer is still pending (i.e. we're waiting for an answer in the ACK), the re-INVITE must be answered with 491/Request Pending.

Unfortunately if we answer the re-INVITE with 200/OK, we will have two pending invite transactions, and we don't support that. Hence the solution that this ticket implements is to always answer with 491 for such re-INVITE.

Change History (2)

comment:1 Changed 12 years ago by bennylp

  • Description modified (diff)

comment:2 Changed 12 years ago by bennylp

  • Resolution set to fixed
  • Status changed from new to closed

(In [3959]) Fixed #1455: Incoming re-INVITE is unhandled if it comes in CONNECTING state (thanks Olle Frimanson for the report)

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