Abstract: The sharing of trunk groups is accomplished by performing incoming call routing analysis on the incoming call to determine if the call is intended for wireless applications on the network or for wireline applications on the network. The results of the incoming call routing analysis form the basis for determining those actions necessary to process the call. If the incoming call is wireless, executing the wireless related application code, notify the mobile switching center of the incoming call, and wait for directions. If the incoming call in wireline, attempting to deliver the call to a particular wireline, fire an advanced intelligent network (AIN) terminating trigger, and tandem the call through to another switch. Outgoing calls are simply allowed to hunt across shared trunk groups rather than being limited to trunk groups specified for the application.