Patent ID: 7069432
Filing Date: 2006-06-27
Classification: H04L,H04M

Abstract:
1. A method for establishing a telephone call between a trusted Internet Protocol (IP) telephone and an untrusted device, the method comprising: receiving a call initiation request from an untrusted device external to a trusted network, the call initiation request indicating a desired communication with a trusted IP telephone coupled to the trusted network; evaluating the call initiation request; establishing a telecommunication link between the untrusted device and the trusted IP telephone in response to a positive evaluation of the call initiation request, wherein evaluating the call initiation request comprises determining whether the untrusted device is requesting the establishment of media streaming with the trusted IP telephone; monitoring communications transmitted between the untrusted device and the trusted IP telephone on the telecommunication link to ensure that the communications are media streaming to maintain the integrity of the trusted network; and terminating the telecommunication link if the communications transmitted between the untrusted device and the trusted IP telephone are not media streaming to maintain the integrity of the trusted network; wherein establishing the telecommunication link comprises: