The Internet location services model
The Internet location services as embodied in the HTTP Enabled Location Delivery (HELD) protocol and associated presence and location encoding specifications is in contrast to the established location services model and protocols as seen in today's cellular and wireline PSTN networks. This paper makes the comparison between these two domains and elaborates on the structure and procedures of the Internet location services architecture. It describes the mechanics of the location service and describes its application to Internet services including the general approach to supporting location capabilities in the context of presence services. (C) 2008 Elsevier B.V. All rights reserved.
internet location held presence ip location lis