Philips Lifeline Quick Setup Manual page 8

Connect your phone to the Voice Extension (optional)
 If you did not disconnect your phone from the wall jack,
you may skip this step and go to the next step.
 If you unplugged your phone from the wall jack during the
previous step, then plug the cord from your phone into the
purple jack at the back of the Voice Extension.
 If you have completed this step correctly, you should hear
a dial tone on your phone.
8