This is probably a simple question, but it has me quite stumped. The little 3.6v battery on our system died and a our phone system blanked.

Most of it is very straight forward and I got all the features working, but one! Our voicemail system is connected via two SLT ports. Those ports are not "hearing" either DTMF tones or the D-tone.

I have connected an analog phone to the system (calling from a digital phone) and confirmed that the signals are not being passed.

My question is: How do I enable the SLT ports to always receive DTMF? I am sure its somewhere in the manual, but I cannot seem to find it.

Thank you in advance. I owe you my firstborn.

Brad