Short message service support over a packet-switched telephony network
June 21, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesSystem and method for providing packet data and voice services to mobile subscribers Inter-technology roaming proxy Transporting short message service (SMS) messages within a telecommunications network Data packet radio service with enhanced mobility management System and method for routing messages in radiocommunication systems Communicating packet data with a mobile station roaming within an incompatible mobile network Delivery of short messages in a packet radio network Integrated radio telecommunications network and method of interworking an ANSI-41 network and the general packet radio service (GPRS) Short message service with improved utilization of available bandwidth Method of routing a short message and an apparatus for routing a short message Patent #: 6442159 Inventors
AssigneeApplicationNo. 09/337335 filed on 06/21/1999US Classes:370/352, Combined circuit switching and packet switching370/328, Having a plurality of contiguous regions served by respective fixed stations370/401, Bridge or gateway between networks455/445, Call routing (e.g., to prevent backhaul, routing efficiency, least cost, or alternate routing)455/466, Auxiliary data signaling (e.g., short message service (SMS))709/249MULTIPLE NETWORK INTERCONNECTINGExaminersPrimary: Ton, DangAssistant: Phan, Tri H. Attorney, Agent or FirmInternational ClassesH04Q 7/22 (20060101)H04M 7/00 (20060101) H04M 3/533 (20060101) H04M 3/50 (20060101) H04M 7/12 (20060101) H04M 3/53 (20060101) AbstractAccording to an embodiment of the present invention, a system is provided that includes a cellular network, a Public Switched Telephone Network (PSTN) and a mobile IP-telephony network (MIPTN). Both the cellular network and the MIPTN include a Home Function and one or more visited Functions. MIPTN subscribers can roam within the MIPTN. Also, a Gateway Function interfaces the PSTN and the MIPTN to allow roaming between the cellular network and the MIPTN. The Gateway Function performs a dynamic mapping function between PSTN/cellular addresses (e.g., in E.16440 format) and MIPTN addresses (e.g., IP addresses) to allow registration and call delivery for subscribers roaming between the cellular network and the MIPTN. A similar type of Gateway Function also allows Short Message Service (SMS) messages to be delivered over the MIPTN as well.Other References
Field of SearchCombined circuit switching and packet switchingRouting packets through a circuit switching network Through a circuit switch Hand-off control Bridge or gateway between networks Switching a message which includes an address header Adaptive Converting between protocols Having a plurality of contiguous regions served by respective fixed stations Using messages having an address field as header | |
