I have 2 older corded phones with handsets and the connecting cables have 2 conductors.
The plugs on the ends do fit into the TIU and the remote.
I have 4 conductor cords but the plugs on the ends do not fit into the remote.
Are there adapters for my 4 conductor cords that will allow them to work with the remote?
Or, if I search on-line, how do I specify what I am looking for to make sure I get the correct size plug that will fit into the remote?