ETSI - TS 123 141
Universal Mobile Telecommunications System (UMTS); LTE; Presence service; Architecture and functional description
|Publication Date:||1 June 2018|
The present document describes the stage 2 description (architectural solution and functionalities) for the Presence Service, which includes the elements necessary to realise the stage 1 requirements in TS 22.141 .
The present document includes information applicable to network operators, service providers and manufacturers.