PJSIP endpoints with multiple contacts

Asterisk Asterisk SIP
1

Hello,

When you register multiple contacts to a PJSIP endpoint, in the 200 OK, Asterisk is responding with a list of all contacts and their expiration time:

Contact: <sip:42879@ip.address:port>;expires=468
Contact: <sip:39293@ip.address:port>;expires=3599

I am curios as why Asterisk is doing that, why would the endpoint need to know about other contacts?
If this is informational only, is there a way to disable it?

Thanks

2

It’s what the RFC says to do, the 200 OK returns all Contacts bound on the AOR. There is no functionality to disable it.

3

Thank you, Josh!

(The 20 character minimum on the forums is annoying :wink: )

4

To finish this thought in case anyone stumbles upon this in the future, here’s the specific section of the RFC[1].

[1] rfc3261