Patent ID: 8738716

Claim:
A method for routing a pager mode converged IP messaging (CPM) message, comprising: when a terminating participating function needs to send a pager mode CPM message to a plurality of receiving CPM clients that meet a receiving condition, the terminating participating function sending a pager mode CPM message to each of the plurality of receiving CPM clients, wherein said each page mode CPM message sent by the terminating participating function carries a globally routable identification of the corresponding receiving CPM client of the a plurality of receiving CPM clients and said each pager mode CPM message being routed to the corresponding receiving CPM client through a SIP/IP core network; wherein: the terminating participating function obtains the globally routable identification of each receiving CPM client by any one of the following ways of: (a) after the SIP/IP core network receives a registration message sent by a receiving CPM client, allocating a globally routable identification for the receiving CPM client, and forwarding the registration message carrying the globally routable identification allocated for the receiving CPM client to the terminating participating function; (b) the terminating participating function requesting to subscribe registration states of users by sending a subscription message to the SIP/IP core network, and the SIP/IP core network, after receiving the subscription message, sending a subscription notification message to the terminating participating function; wherein, if a CPM client of a certain user among the subscribed users is registered, the subscription notification message carries the globally routable identification of the CPM client, and if a CPM client of a certain user among the subscribed users is not registered, the CPM client, after registering, sends the subscription notification message carrying the globally routable identification of the CPM client to the terminating participating function.