PC-Telephone Cost: $45 Get the full version     Trial version     Developer's Website Contacting third-party download site please wait. If your download does not start, click here, or get the full version Descriptions PC-Telephone: PC-Telephone(R) is a powerful communications software application that enables you to exploit the full communications potential of the Internet and public telephone networks ISDN/PSTN. PC-Telephone turns your computer into Internet telephone, ISDN phone, fax machine, voicemail answer phone and much more. Use PC-Telephone to place FREE PC-to-PC and cheap PC-to-Phone/Fax calls over Internet and ISDN/PSTN. PC-Telephone is the first software application that integrates the regular Computer Telephony and Internet Telephony (Voice over IP) in a single user interface.