3 Feb
2010
3 Feb
'10
4:49 p.m.
On 02/03/2010 04:44 PM, Iñaki Baz Castillo wrote:
This is a re-INVITE and the UA (MY_SBC_PROXY) replies
a 200 with the natted
Contact (as usual).
Then the PSTN_PROXY server creates the ACK by setting such private SIP URI as
RURI. This is incorrect, this RURI *MUST* be the remote target set in the
initial INVITE/200 (the Contact the UA received when the dialog was
established). This remote target cannot change within a dialog (as Alex and me
have explained in this thread).
I do not have statistics, but anecdotally speaking, I have encountered
this problem so often and had to work around it by re-fixing the Contact
in the sequential INVITE or reply to it that I did not even know it was
an incorrect behaviour! I suspect it is rather common.
--
Alex Balashov - Principal
Evariste Systems LLC
Tel : +1 678-954-0670
Direct : +1 678-954-0671
Web : http://www.evaristesys.com/