При звонке через внешний SIP-транк(регистрацию у провайдера) на внутренний телефон происходит обрыв соединения примерно через 30 сек после начала разговора.
В дебаге:
Код:
014-09-03 22:21:13.570412 [DEBUG] switch_core_session.c:969 Send signal sofia/internal/sip:192@91.231.141.230:4810 [BREAK]
2014-09-03 22:21:13.570412 [DEBUG] switch_core_session.c:969 Send signal sofia/external/+79117501XXX@sip.telphin.com:5068 [BREAK]
2014-09-03 22:21:38.010416 [DEBUG] switch_core_session.c:1052 Send signal sofia/external/+79117501XXX@sip.telphin.com:5068 [BREAK]
2014-09-03 22:21:38.010416 [NOTICE] sofia.c:926 Hangup sofia/external/+79117501XXX@sip.telphin.com:5068 [CS_EXECUTE] [RECOVERY_ON_TIMER_EXPIRE]
2014-09-03 22:21:38.010416 [DEBUG] switch_channel.c:3217 Send signal sofia/external/+79117501XXX@sip.telphin.com:5068 [KILL]
2014-09-03 22:21:38.010416 [DEBUG] switch_core_session.c:1387 Send signal sofia/external/+79117501XXX@sip.telphin.com:5068 [BREAK]
На сайте написано относительно кода сброса:
This cause indicates that a procedure has been initiated by the expiration of a timer in association with error handling procedures. This is often associated with NAT problems. Ensure that "NAT Mapping Enable" is turned on in your ATA. If it is not NAT related it can sometimes be provider related, make sure to ensure another outbound provider does not solve this
В настойках internal.conf стоит
<param name="nat-options-ping" value="true"/>
<param name="aggressive-nat-detection" value="true"/>
Звонки между внутренними абонентами по таймауту не обрываются.
Подскажите, в какую сторону рыть.