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SIP REFER Message, over NAT
2008 Mar 05
0
SIP REFER Message, over NAT
...is that when you press the "xferLx" the SPA942 sends a "REFER" message to Asterisk, but there's one thing that seems wrong, the "Via" header. On every message that reaches Asterisk the Via header is: incoming: Via: SIP/2.0/UDP <WAN IP>:18363;branch=z9hG4bK-bb6024d6 outgoing: Via: SIP/2.0/UDP <WAN IP>:18363;branch=z9hG4bK-bb6024d6;received=<WAN IP> (either with rport or without it) On the REFER message the thing is different... incoming: Via: SIP/2.0/UDP 192.168.1.20:5060;branch=z9hG4bK-37cbdb0 outgoing: Via: SIP/2.0/UDP 192.168.1.20:5060;bran...