18 Feb
2010
18 Feb
'10
1:37 p.m.
El Jueves, 18 de Febrero de 2010, Asterisk User escribió:
Sorry for the trouble, but for the sake of simplicity
I just removed
those subsequent NOTIFY packets from my previous mail. Kamailio does
keep on sending NOTIFY to the client but doesn't get OK.
ok, so no problem in kamailio's side.
You are right, phone is behind NAT. I just want to
know if phone sends
OK to NOTIFY for the first time (SUBSCRIBE) then why not on subsequent
SUBSCRIBEs?
Not sure why could be the reason. Sometime it occurs that some routers close
the UDP "connection" mapping after 40-50 seconds, not enough time to receive a
SIP keepalive from the server (kamailio can send a SIP request as OPTIONS to
ensure the NAT mapping keeps open in the router). This is not the cause since
the client sends a re-SUSBCRIBE and it that moment the router should re-create
the UDP mapping (if it was terminated before by router timeout).
So sincerelly no idea, but the problem is there, sure :(
--
Iñaki Baz Castillo <ibc(a)aliax.net>