Patent ID: 8386616

Claim:
A method of retrieving information delivered from a Notifying node of a SIP/IMS network to a Watcher Client, comprising the following steps, executed by the Watcher Client: setting-up a SIP session with a Watcher proxy establishing a connection with the Watcher Proxy, using said SIP session, said Watcher Proxy for handling SIP subscriptions, wherein each SIP subscription is a subscription for a specific service, said service being identified by a SIP event package, initiating a SIP subscription between said Watching Proxy and said Notifying node, by forwarding a SIP subscribe message to said Watcher Proxy via said connection, said SIP subscribe message being embedded in a Message Session Relay Protocol (MSRP) message, and receiving at least one notification associated with said SIP subscription from said Watcher Proxy, said notification being delivered via said connection as a SIP notify message embedded in a MSRP message, for enabling notifications to be transmitted via the SIP/IMS network separate from a SIP control channel of said network.