Questions for VoIP Installers What Is a VOIP Telephone? A VoIP telephone is a VoIP (Voice over IP) phone that uses an internet connection to place and receive calls, rather than using a traditional telephone line. VoIP phones are becoming increasingly popular, as they offer a number of advantages over traditional landline phones. These phones can be used with any broadband internet connection, making them very versatile. VoIP phones also offer a number of features that are not available with traditional landline phones. For instance, caller ID, call waiting, voicemail, and three-way calling. VoIP phones are also generally less expensive than traditional landline phones. Our VOIP Installers here at NM Cabling are here to guide you through the design, installation and after care of your system.