A:AnswerI think it's set up to use with only one phone line since there is only one base unit. I have additional phones in my house that are not panasonic but only one phone line.
A:AnswerHi Cindy, we do not recommend for security reasons. See information on page 70 http://help.panasonic.ca/viewing/ALL/KX-TG3760/OI/TGD562_PNQX8351YA/TGD562_PNQX8351YA.pdf regarding (REN) which is Ringer equivalence.
A:AnswerHi Jane, thank you for reaching out to us. Please use this link https://shop.panasonic.com/contactus to contact our tech support team via chat Mon-Fri 9am-5:30pm est.
A:AnswerYes, this product works with bluetooth. If connecting via Link2Cell via bluetooth it will connect to your cell phone utilizing all the remainder functions of a landline. (i.e. the Answering Machine will work with all the remaining functions.) You do not need a landline. For additional reference and support see the YouTube review for more information: https://www.youtube.com/watch?v=fnw-PaetECc