Introducing VoIP Signaling Protocols
VoIP signaling protocols are responsible for call setup, maintenance, and teardown. A number of different protocols are in use—some standards-based, others proprietary, and each with advantages and disadvantages. The following sections introduce the signaling protocols you should know about, including SCCP, H.323, MGCP, and SIP.
VoIP Signaling Protocols
VoIP signaling protocols handle the call setup, maintenance, and teardown functions of VoIP calls. It is important to keep in mind that the signaling functions are an entirely separate packet stream from the actual voice bearer path (RTP). The signaling protocol in use must pass the supervisory, informational, and address information expected in any telephony ...
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