Patent ID: 8989705
Filing Date: 2015-03-24
Classification: H04L,H04M,H04W

Abstract:
1. A mobile access terminal for use in an internet protocol multimedia system, comprising: a first region of memory; a device application stored in the first region of memory; a second region of memory that implements a trusted security sector; and, a centralized media controller application stored in the trusted security sector that is mated and paired with an incident internet protocol multimedia system network, authenticates the device application by proxy rather than performing authentication over the incident internet protocol multimedia system network, and provides the device application with communications connectivity with the incident internet protocol multimedia system network, wherein the centralized media controller application stored in the trusted security sector of the mobile access terminal is an extracted call session control function server application that provides a sub-set of the functionality provided by a full call session control function server application executing in the incident internet protocol multimedia system network.