I’m trying to configure NEC Univerge SV-8100, Asterisk 18.104.22.168 and Wellgate FXO 2540 (wellgate is connected to LG Nortel PBX) with SIP protocol.
The outgoing call from Wellgate FXO 2540 to NEC Univerge SV-8100 via Asterisk is working, but having problem if outgoing from NEC Univerge SV-8100 to Wellgate FXO 2540 via Asterisk.
The scenario is
The extension is 199 in NEC Univerge SV-8100
The extension is 490 in Wellgate FXO 2540
I’m able to make a conversation from 199 to 490, but it always drop the call @ 30 seconds.
I can see from sip debug the invite, ack status and the sip xxx/xxxx is answered sip xxx/xxxx
I have tried some suggestion regarding the retransmission thing, but no luck.
appreciate for your help