Private enterprises with their own IP networks, as well as major telcos and IP telephony carriers that have developed IP backbones, can provide voice quality that competes with the traditional PSTN.

Service providers haven't had much success hosting traditional telephony, Popova notes. But the new breed of companies hosting IP telephony has an advantage in the cost savings achieved by ...

Supporting traditional telephony (TDM) as well as voice over IP (VoIP), Asterisk is written in C and uses the Unix standard POSIX programming interface to communicate with the operating system.

The VoIP services market is undergoing considerable development as businesses and individuals seek cost-effective ...