Ticket #2066 (closed defect: fixed)

Opened 12 months ago

Last modified 12 months ago

SDP ignored in 180/183 response without To tag

Reported by: nanang Owned by: bennylp
Priority: normal Milestone: release-2.8
Component: pjsip Version: trunk
Keywords: Cc:
Backport to 1.x milestone: Backported: no


According to RFC 3261 section 12.1.2 UAC Behavior:

... A UAC MUST be prepared to
receive a response without a tag in the To field, in
which case the tag is considered to have a value of null.

This is to maintain backwards compatibility with RFC
2543, which did not mandate To tags.

So even if the To tag is missing, the response should still be handled for backwards compatibility.

Thanks Kevin Harwell for the report and the patch.

Change History

comment:1 Changed 12 months ago by nanang

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

In 5700:

Fixed #2066: SDP ignored in 180/183 response without To tag.

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