i cannot hear any ring from leg a and the phone on the leg b doens't ring and after some seconds the call is hanged up with cause "[CS_CONSUME_MEDIA] [NO_ANSWER]" obtaining this on the fs console.
2014-04-17 23:02:54.013897 [DEBUG] switch_channel.c:3187 Send signal sofia/internal/900 [KILL]
2014-04-17 23:02:54.013897 [DEBUG] switch_core_session.c:1351 Send signal sofia/internal/900 [BREAK]
2014-04-17 23:02:54.013897 [DEBUG] switch_core_state_machine.c:415 (sofia/internal/900) Running State Change CS_HANGUP
2014-04-17 23:02:54.013897 [DEBUG] switch_core_state_machine.c:678 (sofia/internal/900) Callstate Change DOWN -> HANGUP
2014-04-17 23:02:54.013897 [DEBUG] switch_core_state_machine.c:680 (sofia/internal/900) State HANGUP
2014-04-17 23:02:54.013897 [DEBUG] mod_sofia.c:506 Channel sofia/internal/900 hanging up, cause: NO_ANSWER
2014-04-17 23:02:54.013897 [INFO] mod_dptools.c:3201 Originate Failed. Cause: NO_ANSWER
If i re-register the phone i can receive call for some seconds and than the problem returns.