Hello, I'm having problems making international calls from our asterisk using an ISDN30 in the netherlands. Below is the zapata.conf that works for all national calls, but international calls all fail a RC=41 ; zapata.conf [trunkgroups] [channels] language=nl signalling=pri_cpe switchtype=euroisdn callerid=asreceived ;pridialplan=unknown ;prilocaldialplan=unknown immediate=no callerid=asreceived ;nationalprefix=0 ;internationalprefix=00 ;faxdetect=incoming ;transfer=yes overlapdial=no group=1 context=from-pstn channel => 1-15,17-31 language=nl If I follow the info from voip-info.org I should use the parameters pridialplan and prilocaldialplan and set both to unknown for KPN in the Netherlands, however if I do so, I can't make national calls anymore, must be overlooking something here. Any help is welcome, Filip -- IT Operations Home Automation Europe Joan Muyskenweg 22 1096CJ Amsterdam KvK: 34187907 T. +31 20 4621680 D: +31 20 4621683 F. +31 84 8378748 M. +31 651 744702