I know it won't help much but we use now a bristuffed Asterisk along with Snom 320 phones.<br><br>It works now most of the time but we had to patch Asterisk keep calls from being cut (5% of calls were hit by that - symptom is voice cut in the middle of call).
<br><br>Now we still have calls being hanged while ringing (0,5% occurence rate) but when a call is established, everything works fine.<br><br>The setup is :<br>0.3.0-PRE-1s brituffed 1.2.10 asterisk along with 6.2.3 Snom 320.
<br><br>For further details, contact me offlist.<br>Regards<br><br>