[Linphone-users] Feedback to linphone-1.0.0

[Lasse Jansson]

I tried out linphone-1.0.0 today in a NAT environment.

I have configured linphone to use my NAT:s public IP (NAT_IP), and I have also 
configured a different SIP port than 5060 (SIP_PORT).

The NAT is configured so that packets with NAT_IP:SIP_PORT will be forwarded 
to the pc where linphone runs.

Here is some feedback:

1. Register
When I register at a SIP proxy the contact information that linphone issues 
says: Contact: <sip:address@hidden>

2. Placing a call
When I place a call to someone else the contact information that linphone 
issues says: Contact: <sip:address@hidden:SIP_PORT>

- So this actually works fine!

3. Receiving a call
When someone else calls me, my SIP proxy looks up the location information for 
me which is then Contact: <sip:address@hidden>

- This does not work, since the network setup requires that others try to 
reach me at NAT_IP:SIP_PORT

Question: Would it not be logical that linphone uses NAT_IP:SIP_PORT also when 
it issues REGISTER messages as it does when it issues INVITE messages?

Lasse