Open source PBX software that runs under Linux and other Unix variants on a variety of hardware, including x86, PowerPC, POWER and Xscale. Supporting traditional telephony (TDM) as well as voice ...

The first business customer implementations of VoIP were long distance calls over an IP WAN as an alternative to traditional PSTN trunk facilities. Network gateway servers had converted PBX TDM/PCM ...

with pure IP PBX and hybrid PBX equipment sales up and TDM PBX equipment sales down, Infonetics found. The report also revealed that the IP PBX segment grew 9 percent in revenue and 7 percent in ...