Is it possible to detect the attempt to dial to unallocated (unassigned) numbers ? Currently I cannot distinguish the error from "no-answer". There is a extension with priority n + 101 but it is not used. The dialplan extension looks like: Dial(CAPI/${num1}:B${num2},30,T) If I use lowercase "b" (always early B3) I can hear some external error indication for 30 seconds. ${CAUSECODE} and ${HANGUPCAUSE} do not contain usefull information. -- Stefan Tichy <asterisk@pi4tel.de>