1. A presence server for a mobile telecommunications network configured to: receive a request for a presence indication that said mobile station is active from a presence-based application; determine if said mobile station is active using a presence query mechanism; receive a presence message responsive to said presence query mechanism representing whether said mobile station is active or inactive; terminate further processing if said presence message indicates said mobile station is active; establish a notification trigger respective to said mobile station in said mobile network based on said request; receive a notification message responsive to said notification trigger from said mobile network, said message representing whether said mobile station is active or inactive; and provide contents of said notification message to said presence-based application.