A system and method for enforcing policies for session-mode messaging between two or
more communication devices. A policy is imposed by a signaling-level session control
element on a communication device to establish a bearer-level binding between the
communication device and bearer-level relay. A state of the bearer-level binding is
determined, which is provided to the signaling-level session control element. The signaling-
level session control element allows or disallows the first communication device to engage …