Patent ID: 8681659

Claim:
A local area network, comprising: a talking device; a plurality of listening devices; a cataloging device that builds one or more catalogs by obtaining basic information about said talking device and said listening devices, including positional information; a user interface for allowing a user of the talking device to interface with the relevant catalog, update the catalog with additional user attribute information using the user interface and select at least one of the listening devices; said cataloging device provides a relevant catalog selected from the one or more catalogs to said talking device; said talking device includes an interface which enables a user to select at least one of the listening devices identified in said relevant catalog; said talking device sends a subscribe-request message to said selected at least one listening device requesting that said selected at least one listening device subscribe to said talking device enabling said talking device to send a media stream to the selected at least one listening device; said selected listening device sends a subscribe message to said talking device in response to receipt of the subscribe-request message from said talking device; and said talking device sends the media stream to the selected at least one listening device.