PPT Slide
 
 
- Extensible set of location formats.
 
- Both the Client Initiated and Server Initiated model for location dependent services must be supported.
 
- Privacy. 
Subscriber and end user control of when location information is released and to whom. 
Anonymous access is not enough.
A privacy framework must allow user agents to discover new location enabled services and negotiate new privacy agreements.
 
- Authority override of privacy controls to support legal requirements.