Request to all – Please help we are BADLY stuck in this asterisk 11.13 and Kamailio 4.1 integration provided with Elastix MT

Our Configuration is like this:

Asterisk IP – 10x.3x.6x.236 port 5080

Kamailio IP - 10x.3x.6x.236 port 5060

Please see our kamailio.cfg attached.

Issue 1:

Issue is REGISTER messages sent by asterisk are not responded by kamailio asterisk is constantly doing a re-transmit on REGISTER messages.

Retransmitting #1 (NAT) to 10x.3x.6x.236:5060:

REGISTER sip:ims.airtel.in SIP/2.0

Via: SIP/2.0/UDP 10x.3x.6x.236:5080;branch=z9hG4bK40ac1ed8;rport

Max-Forwards: 70

From: <sip:+91224400@ims.airtel.in>;tag=as565ef860

To: <sip:+91224400@ims.airtel.in>

Call-ID: 7dd361ec25cb07344ea9df526e89ca8a@10x.3x.6x.236

CSeq: 182 REGISTER

User-Agent: Asterisk PBX 11.13.0

Expires: 120

Contact: <sip:+91224400@10x.3x.6x.236:5080>

Content-Length: 0

Issue 2:

We are not able to see any log messages in /var/log/kamailio.log. We have done all kind of changes suggested on online blogs

Why does kamailio not have a pre-set configuration as it is mostly used as sip proxy?

Manoj K. Gupta