Ack (Acknowledgement Timeout) on Soft phone - call lasts 30 seconds
When I make a call from my Voxalot account, registered via a Grandstream BT102 ip phone to a Draytel Account or Voiptalk running on a softphone (under Windows), the call connection lasts 30 seconds or so, and dies. This happens both with an SJ-Softphone, or with X-Lite receiving the call.
The SJ softphone displays a message :
Awaiting acknowledgement [ 00:xx...
After 30 seconds (actually 31-32 seconds), the call is disconnected and the SJ Phone displays a message in a pop-up.
[ACK Timeout]
I believe the same thing happens in X-Lite but no message is displayed.
A log of this period is attached.
Can any body suggest what is wrong or what I might be able to change to improve this ?
Any suggestions are greatly appreciated. Thanks
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