Importance

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Abstract

The present application is directed to systems and methods for providing security for session initiation protocol (SIP) services via a single device providing an SIP proxy and video conference bridge. A device deployed as a proxy between a first client and a second client receives an SIP request of the first client to establish a real-time communication with the second client. The device determines, based on application of a policy to the first SIP request, to deny the SIP request. The device receives a real-time communication protocol request, originated by the first client, to establish a real-time communication channel with the second client. The device identifies that the first client originating the real-time communication protocol request corresponds to the first client of the denied SIP request, and discards the real-time communication protocol request, at a transport layer of a network stack of the device, responsive to the identification.

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First Claim