How does GlobalTone Hosted PBX work?
GlobalTone 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). Every VOIP telephone has a unique IP Address. Thus Hosted PBX translates the public phone network to an IP address. When a phone number is dialed, the Hosted PBX switch looks up the IP address and seleivers the call to the VOIP telephone. 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 VOIP 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
