22.1413GPPPresence serviceStage 1TS
The presence service shall be able to support various charging mechanisms both for On-line and Off-line charging. The following charging characteristics shall be considered:
– charging for a user’s registration as a presentity
– charging for each subscription to presence information for a user
– charging for presence information retrieval for users
– charging for presence information notifications received for users
– charging for presence information usage when in a visited network
The above list is not exhaustive.