Patent ID: 9037697
Filing Date: 2015-05-19
Classification: H04L

Abstract:
1. A method of controlling user subscriptions within an IMS Application Server of an IP Multimedia Subsystem (IMS) network, via an Open Service Access Application Programming Interface (API) between the IMS network and a web-based application, the method comprising: subscribing a set of users by sending a start subscription message from said web-based application to the IMS network, the start subscription message comprising an address for each user in the set; sending an acknowledgement of the subscription from the IMS network to said web-based application, the acknowledgement comprising a correlator uniquely identifying the subscribed set of users within the IMS network; and terminating a subscription for one or more users of the subscribed set of users by sending a stop subscription message from said web-based application to the IMS network, the stop subscription message comprising one or more addresses of the one or more users of the subscribed set of users for which the subscription is being stopped.