VoIP increasingly relies on SIP Trunking

SIP Trunking is a growing Voice over Internet Protocol (VoIP) and unified communications method.
A new study by Heavy Reading IP Services Insider has shown that businesses will install 24.3 million Session Initiation Protocol (SIP) trunks over the next three years. In 2009 there were 8.5 million SIP trunk installations in all.

SIP Trunking is very popular among SMBs as it cuts costs and gives them flexibility in the operation of their business phone systems.
A research analyst with Heavy Reading , Denise Culver, said: "SIP trunking is a way for smaller enterprises to afford the same leased-line services which are available to their larger competitors. They can have all the prestige that comes with looking like a large, organised corporation, but without having to make the same cost investments."
She added: "Although doubts remain about the service quality of SIP trunking, it's clear that small businesses are seeing the value of IP-based networks. As they do SIP trunking will grow significantly in the run up to 2013."

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