Bei mir finde ich dieses:
Sent to udp:192.168.178.1:5060 at Dec 22 17:48:32 (625 bytes):
REGISTER sip:fritz.box SIP/2.0
Via: SIP/2.0/UDP 192.168.178.51:6012;branch=z9hG4bK-0dp3q7hh3pol;rport
From: <sip:
[email protected]>;tag=d07agwsxvv
To: <sip:
[email protected]>
Call-ID...