Hi, AFAIK PJSIP is supposed to implement RFC 5626 "Managing
Client-Initiated Connections" (AKA "Outbound" spec).
If this feature is not implemented in the version of PJSIP used within
CSipSimple or Blink softphones, then please tell it to me and just
ignore the rest of the mail :)
Using CSipSimple r944 I see a REGISTER like this (ommiting some headers):
----------
REGISTER sip:domain.net SIP/2.0
Contact: "Alice" <sip:ibc at 192.168.1.13:60461;transport=TCP;ob>
----------
Such a REGISTER has nothing to do with the text of the draft. An
example of really valid REGISTER implementing RFC 5626 appears in the
RFC itself:
---------
REGISTER sip:example.com SIP/2.0
Via: SIP/2.0/TCP 192.0.2.2;branch=z9hG4bKnashds7
Max-Forwards: 70
From: Bob <sip:bob@xxxxxxxxxxx>;tag=7F94778B653B
To: Bob <sip:bob at example.com>
Call-ID: 16CB75F21C70
CSeq: 1 REGISTER
Supported: path, outbound
Route: <sip:ep1.example.com;lr>
Contact: <sip:bob at 192.0.2.2;transport=tcp>;reg-id=1
;+sip.instance="<urn:uuid:00000000-0000-1000-8000-AABBCCDDEEFF>"
Content-Length: 0
---------
Please note the "outbound" option tag in Supported header and the
;reg-id and ;+sip.instance header parameters in the Contact header.
For sure, PJSIP implements it correctly but maybe both CSipSimple and
Blink do not make usage of it, or they use a previous version of
PJSIP. Am I right?
Thanks a lot for the clarification.
--
I?aki Baz Castillo
<ibc at aliax.net>
