SIP over MPLS for Enterprise VoIP info

SIP over MPLS for Enterprise VoIP at internet Business blog. SIP Trunking is widely popular for smaller businesses who can save on their monthly telecom bill by getting both their telephone and Internet broadband services on a single integrated line. SIP Trunking is also a cost saver for large corporate headquarters or call centers that need many outside phone lines and already have converged voice and data LANs. But what about the organization with multiple locations?The answer may well be SIP

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