Hi Daniel,
I am attaching here my sip trace at client side.Request you to see this.
My client IP in register request is 125.16.231.74 and the server on which kamailio is running is 185.122.205.178.
I want my contact header to be <sip:OTT919620649614@185.122.205.178:5070;lr>
I am using avp_subst() function to replace this.But kamailio is not starting.
Please reply if I am in wrong way or have different understanding as I am very new to kamailio.
Thanks,
Narayan