17 Apr
2012
17 Apr
'12
12:43 a.m.
2012/4/16 Juha Heinanen <jh(a)tutpro.com>om>:
I agree. GRUU usage must be only performed if the client announces
support for it. As Olle pointed, the existence of +sip.instance
Contact header parameter does not mean "GRUU", it could just indicate
Outbound support.
Regards.
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
Note that
+sip.instance is also used in SIP outbound.
yes, i know, but in order to use it for gruu, supported gruu MUST be
included:
When a UA compliant to this specification generates a REGISTER
request (initial or refresh), it MUST include the Supported header
field in the request. The value of that header field MUST include
"gruu" as one of the option tags. This alerts the registrar for the
domain that the UA supports the GRUU mechanism.