I have customer who has a Panasonic KX-TA624 phone system installed in their home. They have two to three incoming phone lines (CO1-CO3). I installed a Sentex Crown Jewel callbox on the exterior of their property. In order to distinguish the callbox from an incoming call the Crown Jewel has to operate in a “NO TELCO†mode. In this mode the Crown Jewel will generate its own line voltage and a double ring tone making it distinct. I tried to connect the output of the Crown Jewel to CO4 on the KX-TA624 and there was no response on the Panasonic’s end when a ring tone was generate from the Crown Jewel.
My questions are:
I found the manual for the KX-TA624 all over the web but is there a manual for the KX-TA624 control box?
Does CO4 input need to be programmed to recognize the incoming line and therefore what phones to output that signal to?
Can this be done via software?
Here is the link to the Crown Jewel although its not much help to a Telco person:
Programming manual (Page 30 of the PDF for NO TELCO MODE)
https://www.liftmaster.com/consumerweb/pdfdocs/6001141.pdf
