[Freeswitch-users] Troubleshooting FreeSwitch Configuration

[Roman Gelfand]

I am running into trouble trying to register to ITSP.  The log file shows ...

2011-06-01 21:58:10.950068 [WARNING] sofia_reg.c:401 Timeout
Registering 1XXXXXXXXXX-callcentric.com
2011-06-01 21:58:11.957417 [WARNING] sofia_reg.c:425
1XXXXXXXXXX-callcentric.com Failed Registration [0], setting retry to
30 seconds.
2011-06-01 21:58:42.046331 [NOTICE] sofia_reg.c:367 Registering
1XXXXXXXXXX-callcentric.com

When challenged by 407 message from ITSP, I get

05:03:12.857: Missing contact header in REGISTER response.

Does anyone know what is happening here? or pointers how to troubleshoot this?

Thanks in advance