OK I'm answering my own question but if i add a custom extension in AMP with no dial string. Then add a dialstring in extensions_custom.conf like exten => 600,1,Dial(IAX2/username:password@host/${EXTEN}@from-internal) it works Bails -------------- next part -------------- An embedded message was scrubbed... From: bails <bails@westcomuk.com> Subject: using AMP custom extensions Date: Fri, 17 Feb 2006 16:25:16 +0000 Size: 1106 Url: http://lists.digium.com/pipermail/asterisk-users/attachments/20060217/35aa0d08/usingAMPcustomextensions.eml