I have an Avaya IP Office PBX phone system. There is a T1 coming in for the trunk. There were 6 numbers associated tot he trunk. 4 of the numbers were taken off by Telco provider and converted to POTS lines and brought into another office off premises from where the PBX is located. In the new office the lines work fine for both incoming and outgoing calls on the analog POTS.
This issue that we are having is that when dialing any of those 4 numbers internally on the AVAYA system it just rings right back into local system. i.e.: 96363345 will ring right back into the phone system. I have gone though IP Office Manager and I cannot see any references to those 4 numbers anywhere. I am suspecting its the telco but wanted to see if maybe I am missing something on the PBX.