I'm running * with a bog standard HFC ISDN card using zaphfc. Everything seems to work, including incoming calls, but I simply cannot make outgoing calls. This is very odd since the same card worked with the same configuration in another server. This is what I get from * debug. The only possible difference between the two servers that I can think of is that the HFC card is sharing an IRQ in the new server, whereas it wasn't in the old one. Could this possibly have an effect, and if so, how do I stop the card sharing IRQs with other devices? I've disabled everything that I don't need in the BIOS already. build_route: Contact hop: <sip:extn702@172.28.218.178> -- Executing Dial("SIP/extn702-82a5", "Zap/1/01932567543") in new stack -- Called 1/01932567543 Ooh, format changed from unknown to alaw -- Channel 0/1, span 1 got hangup Unable to forward voice Set option AUDIO MODE, value: ON(1) on Zap/1-1 Hangup: channel: 1 index = 0, normal = 9, callwait = -1, thirdcall = -1 Not yet hungup... Calling hangup once with icause, and clearing call disabled echo cancellation on channel 1 Set option TDD MODE, value: OFF(0) on Zap/1-1 Updated conferencing on 1, with 0 conference users Set option AUDIO MODE, value: OFF(0) on Zap/1-1 disabled echo cancellation on channel 1 -- Hungup 'Zap/1-1' == No one is available to answer at this time Exiting with DIALSTATUS=NOANSWER. Thanks Stuart