Hi BT have just upgraded the ISDN sevice to ISDN2e for a BCM50r2. Since this has been done the customers DDI ATA fax has not worked.The DDI works OK and calls can be made and received but during fax transmission the data becomes corrupted and the fax fails.BT say that everything OK on their end although I did have to get them to take service off and put back on again for the telephone system to see it.I have made no adjustments to the BCM50r2 and am reluctant to start changeing settings
Thankyou in advance
Thankyou in advance