Set top box supporting bridging between a packet switched network and the public switched telephone network

摘要

A Set Top Box includes processing circuitry, a tuner, a user interface, a remote control interface, a Public Switched Telephone Network (PSTN) interface, and a packet data network interface. To service an incoming call, the processing circuitry obtains and executes bridging instructions that establish a pathway between the PSTN and packet data network interfaces. With such pathway, a call between a PSTN telephony device and an Internet telephony device can be established and maintained via the bridging Set Top Box. Voice over Internet Protocol (VoIP) calls are bridged between first and second VoIP terminals using only the packet data network interface. Telephony instructions used in making bridging decisions may be stored locally or remotely and accessed by the processing circuitry in an appropriate manner when making bridging decisions.