It should work as I have tried call back with analog modems but over E1 trunks, so I assume it will work over POTS interfaces on the TNT. There are some good examples in the manual. Ahmad EL-Hakim ++ Ascend Users Mailing List ++ To unsubscribe: send unsubscribe to ascend-users-request at bungi.com Archives: http://www.nexial.com/mailinglists/