Wim van Ommen Posted September 24, 2008 Report Share Posted September 24, 2008 I have a customer who has strange issues when using the Tapi driver. He posted allready to the forum but did not get any response yet so I will try to explain the issue a little more an hop somebody had an idea. They use Vista business with office 2007 on the client machines. They have installed the tapi client. When we calling with the tapi driver the connection is broken after between 30 sec and 2 minutes. When just dialing the number directly on the phone everything is fine. Anyone have an idea what might be causing this issue. Quote Link to comment Share on other sites More sharing options...
Vodia PBX Posted September 26, 2008 Report Share Posted September 26, 2008 When we calling with the tapi driver the connection is broken after between 30 sec and 2 minutes. When just dialing the number directly on the phone everything is fine. "Broken" means the PBX disconnects the call? Do you see that the PBX sends a BYE? Is there NAT between the PC that runs the TSP and the PBX? Quote Link to comment Share on other sites More sharing options...
Wim van Ommen Posted November 28, 2008 Author Report Share Posted November 28, 2008 Yes it seems the PBX disconnects the call There is no NAT between the PC that runs the TSP and the PBX I have attach a trace my customer made. The pc that sends the TAPI call should be 192.168.16.18 or 192.168.16.20 (they where not completely sure). The calls that failed where to 0641311695, 0638679470 could you check if you see the possible cause? The trace is at http://download.topit.nl/Download/18-11-2008.pcap.zip Quote Link to comment Share on other sites More sharing options...
Wim van Ommen Posted January 14, 2009 Author Report Share Posted January 14, 2009 No ideas? Quote Link to comment Share on other sites More sharing options...
Vodia PBX Posted January 20, 2009 Report Share Posted January 20, 2009 No ideas? The only weird thing that I see is that the SUBSCRIBE packets for TAPI are sent twice. Maybe something "smart" on the PC that doubles the packets? Quote Link to comment Share on other sites More sharing options...
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