This is the outbone call
03/08/2017 3:06:25 PM - Call to T:Line:10000>>xxxxxxxx@[Dev:sip:
[email protected]:5060] from L:5.1[Extn:100] failed, cause: Cause: 503
Service Unavailable/INVITE from 192.168.1.183:5060
If I connect a phone, I have tone, only for make a outside call I need press...