Proxy server for internet telephony

Details Proxy server for internet telephony Proxy server for internet telephony

2006-03-03

2010-10-05

Nguyen, Quynh H (Department: 2614)

Telephonic communications

Plural exchange network or interconnection

With interexchange network routing

C709S222000, C709S238000, C709S202000, C370S432000

Reexamination Certificate

active

07809126

ABSTRACT:
An apparatus and a method are provided for proxying communications between devices on an IP telephony network. In a preferred embodiment, an appliance comprising a network server and proxy server software includes filtering rules which can be modified to enable proxied communication between an IP phone on a first data network, such as, for example, the internet, and a call processing server located on a second data network. In another embodiment, an appliance comprises a proxy server that proxies call-processing and signaling communications between an authenticated IP phone on a first data network and a call processing server located on a second data network. In another embodiment, the appliance relays voice traffic between IP phones. In another embodiment, the proxy server software operates in a secure mode to permit encryption and decryption of voice and control communications. In another embodiment, the proxy server enables proxied communications between a call processing server and an IP phone by modifying the provisioning data exchanged between the call processing server and the IP phone.

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