Hello everyone, 

From today i started getting SIP 480 error when making outbound call. 
I checked out with a different voip provider and got SIP 500 error. 
Internet calling is working fine.

The service (outbound calls) was working fine till yesterday. 

I'm a newbie to kamailio and voip, so need your help. 
Please guide me to resolve this error.

Thanks in advance.