Spanky
Senior Member
I just called Elk support and they said caller ID may not work through the M1 and that this is a known problem and they do not have a solution.
"Them ar fitn wurds"
I do not know of a problem with caller ID and the M1. I am on Vonage and my caller ID has always worked with the line going through the M1.
If any problem exists, there may be a damaged component in the telephone line interface.