The setup is the following:
- Fritzbox 7490 as Internet router on 192.168.5.1, sip port 5060
- Vodia installed on RPi on the internal LAN on 192.168.5.65, sip port 5065
- Need to connect Vodia to Fritzbox via SIP-trunk
Defined an account/pwd on the Fritzbox for the Vodia, but registration fails w/ error 408 (no response). Pretty sure that the default SIP parameters are incorrect, as we had the same problem with the 3cx-product. Two SIP parameters (‘To : User Part’ and ‘From : User Part’) had to be changed form original caller-id to "AuthID". The log extract below confirms a proble w/ the From- and To-fields. Does anybody know where and how to edit these parameters in the SIP trunk configuration ?
The log shows:
SIP/2.0 400 Illegal request uri
Via: SIP/2.0/UDP 192.168.5.65:5065;branch=z9hG4bK-69a8e8c39e0e9ea31d63fc58ad424e08;rport
From: <sip:missing>
To: <sip:missing>;tag=badrequest
Call-ID: cp4tx61h@pbx
CSeq: 2572 REGISTER
User-Agent: FRITZ!OS
Content-Length: 0