VoIP (Voice over Internet Protocol) is simply the transmission of voice traffic (i.e. placing and receiving telephone calls) over an IP based network in data packets versus using a traditional switch-based system such as the Public Switched Telephone Network (PSTN). IP networks can include the Internet, office LANs, and private data networks between corporate offices. Other common names for VoIP include "IP Telephony", "Internet Telephony", "Broadband Telephony", "Voice over Broadband" and "Digital Phone".
VoIP technology operates by sending, receiving and organizing data packets in a systematic way that allows any user to place and receive phone calls in the same manner as they always have to other VoIP and non-VoIP users, with no difference in sound quality.
Some of the major advantages of VoIP include lower fees for long distance calls and access to basic and advanced phone features at prices typically much lower than traditional analogue phone systems.
Basic Features typically include Caller ID, Call Waiting, Voicemail, 3-Way Calling, Call Return.
More Advanced Features include Voicemails Emailed to the user (as .wav files), IVR/Digital Receptionist, Music on Hold, Private Conference Rooms.
Even more advanced features like On-the-Fly Call Recording, Private Instant Messaging and Real-Time Employee Presence monitoring are available with some VoIP software packages now as well!
"Generic" Layout of IP PBX Setup
