Ok, So over the weekend, I managed to provision myself a PRI, and inbound calling works perfectly. However, for outbound calling, I have to either match the dialed number to route the call in my switch, or I need to match on an ISDN sub-address. So, can anyone tell me how to configure zaptel to send an ISDN sub address on outbound calls? FWIW, my siwtch is a Lucent TNT with TAOS version 9.0.9. TIA, -- Troy Settle Pulaski Networks http://www.psknet.com 540.994.4254 ~ 866.477.5638 Pulaski Chamber 2002 Small Business Of The Year