Nortel Networks Corporation

Mark Sosebee

Gregory Thomas Osterhout

Kim Brian Holmes

Jim A McAlear

James Allan McAlear

A system for an adaptive network phone includes a SIP-enabled handset or other telephone device to be connected to a host computer, for instance via a USB connection. The host computer may initiate a call event when the user picks up the SIP device and wishes to make a call, in one regard by testing line conditions for a data connection to the Internet or other network to determine if a packet-based call will meet minimum noise, delay or other criteria of the user. If the conditions are satisfactory, the call may proceed as a packet network transmission, otherwise the call may revert to the public switched telephone network for fallback completion. The SIP-enabled handset may also interface to multimedia functions in the host computer, for instance to permit paging, answering machine, cordless operation or other features.

System and method for network phone having adaptive transmission modes

A method of redirecting a call from a data processing system to another address. In a preferred embodiment, a notice of an incoming call received from a server at a data processing system. This notice may include caller identification information as well. The user of the data processing system is prompted for an address to which the user wishes the call to be redirected. The user then identifies and sends to the server a new address to which the incoming call is to be redirected. The server then redirects the call to the new address.

Portable call management system

A communications system includes a packet-based data network coupled to various network elements, including a gateway that provides ports to various peripheral devices. One type of peripheral device includes a Universal Serial Bus (USB) device. A network element coupled to the data network may establish Session Initiation Protocol (SIP) sessions with the gateway. Once a SIP session is established, communications may occur between the network element and the peripheral device. SIP messaging is exchanged between the network element and the gateway. USB commands and data are exchanged between the gateway and the USB device. The gateway converts between the SIP messaging and the USB commands and data.

Growing community of inventors

Plano, TX, United States of America

Mark Sosebee