We have an AXXESS 256 CPC version 9.128. The embedded modem recently quit working. It has been in place and working for about 2 years. I replaced the CPC card and still the modem will not answer. The modem has a DID directed to it's extension,(1500), but when you call that number or dial 1500 internally the call goes to the attendant. The modem shows as enabled under devices\modems and there is an extension ID built for it. What else could keep the modem from picking up?