In IP Telephony 101, I looked at the pros and cons of IP telephony, and a few of the considerations you should explore before making the switch to VoIP.
We’ll turn now to the nitty-gritty of VoIP systems: the architecture, the equipment, the network structure, the software, and what you can expect to pay.
But before we start, let’s get WAN and LAN out of the way. A LAN (local area
two way switches
each computer connected to two others. Some network structures offer better redundancy than others. If a network is cursed with low redundancy, a connection failure from or to one computer can have a dramatic effect on all the computers on the network. Full redundancy, while the most reliable option, is also the most expensive, since full redundancy requires more routers, more wires, and (potentially) more software. VoIP Software Different VoIP software applications offer different capabilities. Call