Hi all
I have 2 provider, A and B.
since some week, when i make a call through provider A, i can't hear the ring back tone (while with other provider works well).
I notice that if I call through the provider A I can't see in the console the message
"-- SIP/XXX.XXX.XXX.XXX-0000003a is making progress passing it to SIP/100-00000039"
How can I solve?