Patent ID: 7069030
Filing Date: 2006-06-27
Classification: H04W

Abstract:
1. A method of operating a short message service in a short message service server of a private wireless network system interworking with a public land mobile network system, the method comprising: receiving a first short message service request; transmitting a first short message service message to a private mobile switching center of a private wireless network system, said transmitting being performed in dependence upon said receiving of the first short message service request, the first short message service message having a destination corresponding to a mobile unit; and conveying a second short message service request to a short message service server of a public land mobile network system when at least one failure response is received, the at least one failure response indicating that the first short message service message failed to be delivered through the private wireless network system to the mobile unit, the second short message service request being a request to deliver the first short message service message to the mobile unit through the public land mobile network system.