Hello Frank,
Well, the match dialog does not work for this as the second INVITE is
not a sequential request, but an initial one (the dialog wise matching
is done only on the sequential requests).
You can do the check by looking at the IPs in the VIA header, hoping
proxy2 is doing no topo hiding. So, when the call is back to proxy1, the
via[2] ip should belong to itself.
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 20.05.2014 21:48, frank fox wrote:
Greetings:
I have a scenario as below:
Proxy-1 ---(A)---> Proxy-2
<----(B)------------
(A) := Initial Invite from proxy-1 to proxy-2
(B) := proxy-2 modifies the $rd and sends the initial Invite back to
proxy-1
Question:
How can the proxy-1 knows that the coming Invite was originally sent
by itself?
It seems the match_dialog() doesn't work for this situation:
dialog:: hash=3514:62628069"7"
state:: 2
user_flags:: 65536
timestart:: 0
timeout:: 0
callid:: a7ab8ff06766fabe1b4846712fba1051@10.242.65.162
from_uri:: sip:19905635611@10.242.65.162
to_uri:: sip:19905591...@external-sip.vocalocity.com
caller_tag:: 14174341581400528279229
caller_contact:: sip:19905635611@10.242.65.162:5060
callee_cseq:: 0
caller_route_set::
caller_bind_addr:: udp:10.116.239.217:5060
callee_tag:: 16423468221400528279248
callee_contact::
caller_cseq:: 102
callee_route_set::
callee_bind_addr:: udp:10.116.239.217:5060
dialog:: hash=3514:62628069"8"
state:: 2
user_flags:: 65536
timestart:: 0
timeout:: 0
callid:: a7ab8ff06766fabe1b4846712fba1051@10.242.65.162
from_uri:: sip:19905635611@10.242.65.162
to_uri:: sip:19905591...@external-sip.vocalocity.com
caller_tag:: 14174341581400528279229
caller_contact::
callee_cseq:: 0
caller_route_set::
caller_bind_addr:: udp:10.116.239.217:5060
callee_tag:: 16423468221400528279248
callee_contact::
caller_cseq:: 102
callee_route_set::
callee_bind_addr:: udp:10.116.239.217:5060
Regards,
Frank
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