Is there way to find out what the number is for a modem attached to my option 11c pbx? I was told that there is a LD you can go into to find that number? Thanks!
Why not trace it to the RJ? Or if your modem is off of the PBX, (not sure why it would be), go to LD 11, prt 500, and hopefully you have the DN name attached. You could also plug a 500 set into the modem and call a display phone to figure it out...
If you have access to the modem. Unplug the RJ from the back of the modem and into an analog phone and make an outgoing phone call. Look at the caller id.
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