I inherited an old 612 TIE phone system – Customer has a small branch that they want us to service. I have replaced a few TIE’s in my time but never had to program one. If anyone has a manual I would greatly appreciate it.
Right now the system only has 2 lines coming in and they want to add a third line. I have installed the new line in the third CO port but the phones can not access it.

Note: as per Sundance TOS Programing info cant be posted in the open forum