Apparatus and method for connecting a communication network established

And means for establishing a connection method comprising: reserving a common connection to the access terminal by more than (AT) used; the common connection corresponding to the network identifier associated with the AT; delete network identifier context, while maintaining the network identifier; to the AT based on call and based on the network identifier, sending a message via the common connection, wherein the dedicated connection is used to carry the call based on a response to the message. In one example, the apparatus and method comprising: registering a session to the wireless communication network; AT acquires corresponding to the network identifier based on the registration session; Remove the AT network identifier for the relevant context (e.g., deleting Internet protocol (IP) context-related), while maintaining the network identifier; receiving an indication of a call destined for the aT message; and, based on the message, to establish a dedicated connection for carrying the call.