A softswitch ( software switch) is a call-switching node in a telecommunications network, based not on the specialized switching hardware of the traditional telephone exchange, but implemented in software running on a general-purpose computing platform. Like its traditional counterparts it connects telephone calls between subscribers or other VoIP technology makes this a big advantage over traditional landlines. Call queues - When your company has more telephone calls than people to answer them, you need to place them on hold. This is known as a call queue. VoIP services specialize in the ability to provide on-hold messaging, call back functionality, and call routing. VoIP phone systems (PBX) A VoIP PBX (Private Branch Exchange) is a business telephone system that facilitates phone calls over the company's LAN or WAN data network rather than through the circuit-switched networks. VoIP PBX is available in two deployment options - on-premises and cloud-based. First, legacy (PSTN) phone lines cost about $40 per line while one business VoIP line costs about half that. Additionally, traditional phone systems generally add on per-minute charges for long-distance calls. With VoIP systems, free unlimited calling in the U.S. and Canada is standard. IP Telephony utilizes the VoIP standards to create a telephony system where higher level features such as advanced call routing, voice mail, contact centers, etc., can be utilized. Session Initiation Protocol (SIP) is a peer-to-peer, multimedia signaling protocol developed in the IETF. SIP is ASCII-based, resembling and reuses existing IP For VoIP with an adapter, you'll need… a VoIP adapter (of course), and a compatible phone. If it plugs into a router, you'll need a compatible router too. For VoIP with a computer, you'll need… a laptop or desktop computer with an internet connection, the right software, and either a headset or speakers and a microphone. Headsets are better txpk.

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