El Wednesday 09 July 2008 03:39:38 Juan Backson escribió:
Hi,
I am working on getting my two SIP phones behind firewall to talk to each other. One client is SPA 921 and the other client is xlite; and I am force rport for all SIP requests from clients.
It seems innecesary since Xlite adds by itself "rport" parameter.
When xlite sends a INVITE request to openser, openser tries to send to SPA 921, but the PORT is still 5060, instead of 22848.
Why should it be 22848? the destination or source port? "22848" appears never in your trace. Why do you know it should be port 22848?
Therefore, Openser keeps resending INVITE to SPA 921 but never reaches it.
What I see is:
U 48.133.200.20:5060 -> 48.133.23.45:5060 INVITE sip:1005@48.133.23.45 SIP/2.0.
U 48.133.23.45:5060 -> 48.133.200.20:5060 INVITE sip:1005@48.133.23.45 SIP/2.0.
U 48.133.200.20:5060 -> 48.133.23.45:5060 INVITE sip:1005@48.133.23.45 SIP/2.0.
U 48.133.23.45:5060 -> 48.133.200.20:5060 INVITE sip:1005@48.133.23.45 SIP/2.0.
U 48.133.200.20:5060 -> 48.133.23.45:5060 INVITE sip:1005@48.133.23.45 SIP/2.0.
Extrange.
Both linksys and xlite do send preiodic SUBSCRIBE/NOTIFY to Openser. Is there anything else I am missing?
That doesn't matter now.