Voice Over Frame Relay - the next practical way to reduce your network costs! Savings from putting voice tie lines on frame relay data networks can pay back the additional investment in voice equipment in just months. Savings on international circuits are large enough to threaten present tariff structures (with some help from the FCC). From being 'impossible,' VoFR has become an essential element to be considered by network designers. This includes those who historically worked with data as well as those concerned primarily with voice. The goal of this book is to make it easy for anyone with a voice or data background to understand this new fusion technology, VOFR ; This practical book is targeted at network operators - voice and data. It describes voice circuits for data people. And it describes data circuits for voice people. It includes the full Voice Over Frame Relay Implementation, which addresses the following requirements: Transport of compressed voice, Multiplex up to 255 voice sub-channels on a single frame relay DLCI.