Being forced off POTS and converted to VOIP. I'm getting an AP-A unit sent to me and the instructions indicate to not connect the AP-A phone outlet to the home phone jack.

However, the phone company website indicates that this is technically possible but requires a technician be sent to the house ($150 visit).

I don't want to use the AP-A phone jack to connect directly to my (cordless) phone set since the AP-A unit needs to be near wired LAN connection which is not convenient for the phone base.

It seems, via webz searches, that I can connect the AP-A phone outlet to a phone wall jack (connecting to the phone base elsewhere in the house like its current location) as long as I disconnect the external incoming phone line from the phone company to the house. This is very easy to do (it's an RJ(?) connector and not individual wires like before). I can do this outside the house or inside the closet (the home hub where phone, cable and cat5 are sent to various rooms in the house).

Need some expertise: To connect the AP-A to the home phone wiring and my cordless phone base (in its current location in another room), can I connect the AP-A outlet to the hub phone jack in the closet assuming I've disconnected from the external incoming phone company line (which should be disabled once I terminate landline service). Or is it more complicated than this? Would the phone company tech do anything more than this?

The reason not to connect the VOIP>POTS (AP-A) adapter to a connected POTS line is that there is AC voltage on the POTS from the telco.
The AP-A will become your telco & provide the power to drive a normal phone.

If you isolate your POTS system from the telco, you can use multiple phone jacks around the house with the same AP-A. I've done this multiple times, however I don't know your hardware or line setup, so I'm being vague. If you do as you suggest, you should be fine.

Thx. I was thinking that’s all it was and should be fine. But wasn’t completely sure. Expert insights appreciated.

I’ll disconnect the external incoming phone line.