I have a customer with a two cabinet 7200. I have one combo DLI/SLI card in it, with a pri card. The SLI ports are used for FAX machines. Not always but sometimes the DTMFR are all in use (4) and will not release. To fix the problem I have had to do a system reset. Then it will work for a few days. I have done reset to the combo card and to the station ports, but it will not relase the DTMFR. The problem I get is that they can recieve FAX but not FAX out.

Any thoughts?