Subscription management for a content-based presence service

摘要

A method for managing a subscription to content-based presence information entails receiving a subscription-suspension message from a device at a presence service, identifying the subscription associated with the subscription-suspension message, suspending the subscription, and sending a response from the presence service to the device to notify the device that the subscription has been suspended. Suspending the subscription may involve accumulating notifications in a persistent data store. The method may further involve receiving a subscription-resumption message at the presence service to resume the subscription that was suspended.