I'm trying to find information for both the AX Control unit, as well as the CX-ii control unit, related to 4+12 combo cards (4 analog trunks, 12 analog stations) and/or 24 port ONSP (analog station) and/or ASU-ii with 24-port ONSP cards.
I discovered by accident that Analog POTS lines plugged into the 4+12 combo cards on the AX Control unit will "power fail" and ring through to some Analog stations while the system is not fully booted or is powered off.
Is there anywhere in the THB or other documentation that explains how these are configured or work ?