Can a voice/data IP network be as reliable as traditional circuit-switched voice networks?
PBX Time Division Multiplexed (TDM) technology has advantages in single point of failure environments because the dedicated operating system (OS) is on static RAM, ROM and compact flash memory. Pure IP solutions require additional or multiple pieces of equipment to make them as reliable, i.e. redundant servers and processors which drive up cost. In many cases, however, converged IP solutions prove to be the most reliable IP communications alternative. The hybrid or converged IP-PBXs using TDM and IP architecture is the best of both worlds.