I dropped my land line telephone service. I bought an Xlink Bluetooth Cell Phone Gateway which allows us to receive and make calls from any of our 10 telephones via our cell phones. But I am worried about exceeding our Verizon 700 minute allocation because my HR20 keeps dialing 800 531-5602 and 866 709-2073 over and over day and night! The problem is that cell phones do not support fax or modem calling, so the calls are never successful. How can I stop my HR20 from dialing out? I would rather not unplug the phone cable from it because I like getting the Caller-ID on the TV screen.