[Asterisk-Users] Calls from IAX2 trunk start again when hung

[Michael Puchol]

Hi all,

I'm having a weird problem. The setup is Asterisk A with a 
TDM400P/4xFXO, DSL line, and Asterisk B with TDM400P/4xFXO on another 
DSL line.

Both boxes are behind their own NAT. Asterisk B forwards calls from it's 
four PSTN ports to Asterisk A over an IAX2 trunk, which works fine using 
the GSM codec. Asterisk A dials the SIP phones on it's local segment.

The problem is that when the inbound PSTN call ends, the hangups are 
detected, but for some reason, Asterisk B starts a new call all over 
again, Asteriks A receives it, the SIP phones ring, but when one of them 
picks up there is a dialtone, busy tone, or silence.

Is there anything I may be missing here? I can post .conf files, but I 
don't think it has anything to do with those. Calls on the local PSTN 
ports of Asterisk A work fine. This setup is in Spain, FYI.

Regards,

Mike