May 09, 2006
SIP Becomes Call Control Protocol Choice for VoIP Networks
SIP has become the call control protocol of choice for VoIP networks because of its open and extensible nature but the integrity of call signaling between sites is of utmost importance and SIP is susceptible to attackers if not protected.
It is a security mechanism which has been defined by SIP RFC 3261 for sending SIP messages over a Transport Layer Security encrypted channel. Transport Layer Security can be repurposed for protecting SIP session communications from eavesdropping or tampering. Deployment of SIP based devices benefits network administrators from increased levels of security for their VoIP networks.
via techworld
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