I have recently moved into a new office building and the previous owners have already installed a system. They were using ISDN lines and so I assume the interface card is for ISDN. I intend to use PSTN and I am looking for help/information. Do I need to buy a new interface card? If so, where can...
I am not currently in the office, this is the only pic I have right now. Does this help in any way? I have not opened the system yet, will take pics of the cards currently installed.
I have recently moved into a new office building and the previous owners have already installed a NEC DX2E 32I PABX system. They were using ISDN lines and so I assume the interface card is for ISDN. I intend to use PSTN and I am looking for help/information. Do I need to buy a new interface...
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