Abstract: A media client for a networked communication device includes a user agent to communicate with a multimedia application in the networked communication device. The user agent provides a high-level application interface to the multimedia application. A signaling agent under the control of the user agent performs signaling operations necessary to establish and maintain communication sessions. A media agent under the control of the user agent performs media operations. The media client may be located in a network and remotely accessed by the multimedia application. The user agent, signaling agent and media agent have network interfaces that allow these elements to be distributed within the network and accessed remotely.

Abstract: A gateway enables communications between a personal area network, such as a Zigbee network, and an Internet Protocol (IP) network. The gateway includes a first interface device for connecting to the personal area network, a second interface device for connecting to the IP network, and a gateway controller. In one embodiment, the gateway controller allocates ports on an IP interface to one or more clients in said personal area network, stores a routing table in memory for relating said clients in said personal area network with their corresponding ports, and transfers messages between said personal area network clients and said IP network based on entries in said routing table. In other embodiments, the gateway may function in conjunction with a gateway proxy.

Abstract: A gateway enables communications between a personal area network, such as a Zigbee network, and an Internet Protocol (IP) network. The gateway includes a first interface device for connecting to the personal area network, a second interface device for connecting to the IP network, and a gateway controller. In one embodiment, the gateway controller allocates ports on an IP interface to one or more clients in said personal area network, stores a routing table in memory for relating said clients in said personal area network with their corresponding ports, and transfers messages between said personal area network clients and said IP network based on entries in said routing table. In other embodiments, the gateway may function in conjunction with a gateway proxy.