Patent ID: 7613207

Claim:
A system for securing telephony communications between an enterprise telephony endpoint and a remote telephony endpoint, comprising: an isolated packet-based network having a plurality of enterprise telephony endpoints: an exposed packet-based network coupled to a public packet-based network and having a call management device operable to receive an unsecured session request from a remote telephony endpoint coupled to the public packet-based network, to determine that the unsecured session request identifies one of the enterprise telephony endpoints, and to establish a media link between the remote telephony endpoint and an isolation device; and the isolation device coupled between the isolated packet-based network and the exposed packet-based network, wherein the isolation device includes a packet-based interface operable to couple to the isolated packet-based network and the exposed packet-based network, and a switched interface coupled to a loopback cable, the isolation device operable to receive unsecured media associated with the media link, to transmit the unsecured media on the loopback cable to translate the unsecured media to reduce the likelihood of harmful code communicated by the remote telephony endpoint from reaching the identified enterprise telephony endpoint, and to transmit the translated media to the isolated packet-based network.