PIP: Personal Internet Phone Personal Internet Phone works as a regular phone as well as an internet phone. For customers at remote locations that is not serviced by high speed broadband, the use of this phone with a dial up internet connection would bring out the same voice quality. How it works: This multifunction phone works as a regular phone. For regular calls, a click of a the PSTN button will lead to a local line. For calls through the internet, the DISP button will connect the call through the dial up internet connection.