How does VoIPnet work?
VoIPnet is based on Voice over Internet Protocol (VoIP), a method by which voice is digitized and transmitted in digital packets rather than using traditional circuit-committed protocols of the public switched telephone network (PSTN). The IP concept is similar to the PSTN, except that instead of telephones, it uses computers, and instead of telephone numbers, every telephone has a unique IP Address. Thus, IP telephones use IP addresses. Probably the most significant difference with VoIP, as compared to PSTN, is that backbone-trunking resources are not assigned in a dedicated, predictable manner to support a voice call. Instead, trunk bandwidth for a VoIP telephone conversation is assigned on a random, as needed basis, via packet switching. Advanced IP telephony includes many enhanced features, such as voice mail, conferencing, presentation viewing, and unified messaging for cell and PDA devices. These service applications reside on hosted network servers, which deliver very fast respo