Does anyone know, how I can increase the timout value for the ISDN implses, so asterisk waits for the extension on the ISDN channel? Regards, martin My zapata.conf: [trunkgroups] [channels] language=de pridialplan=local prilocaldialplan=local nationalprefix = 00 internationalprefix = 000 ; trust user provided callerid (clip no screening)? pritrustusercid = yes ; hidecallerid=no callerid=asreceived switchtype = euroisdn signalling = bri_cpe pridialplan = local prilocaldialplan = local echocancel = yes echocancelwhenbridged=no echotraining=no usecallerid = yes overlapdial = yes immediate = no group = 1 context = isdn channel => 1-2 switchtype = euroisdn signalling = bri_cpe pridialplan = local prilocaldialplan = local echocancel = yes echocancelwhenbridged=no echotraining=no usecallerid = yes overlapdial = yes immediate = no group = 1 context = isdn channel => 4-5 echotraining = yes rxgain = 0.8 txgain = 0.8 signalling = fxo_ks context = default channel => 7