Invention Grant
- Patent Title: Method and system for delivering short message service (SMS) messages using the session initiation protocol (SIP)
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Application No.: US14033921Application Date: 2013-09-23
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Publication No.: US09648473B1Publication Date: 2017-05-09
- Inventor: Lyle T. Bertz , William J. Routt , Ihab A. Guirguis , Ronald E. Lewis , Christopher R. Melus
- Applicant: Sprint Spectrum L.P.
- Applicant Address: US KS Overland Park
- Assignee: Sprint Spectrum L.P.
- Current Assignee: Sprint Spectrum L.P.
- Current Assignee Address: US KS Overland Park
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04W4/14 ; H04M1/253 ; H04M15/00 ; H04M1/725 ; H04W8/26 ; H04M7/00 ; H04M3/42
Abstract:
An Internet Protocol Multimedia Subsystem (IMS) network uses the Session Initiation Protocol (SIP) to provide communication services to mobile nodes. A short message service gateway (SMS-GW) in the IMS network receives a request to deliver a message to a mobile node. The SMS-GW determines whether the mobile node is IMS registered. If the mobile node is IMS registered, the SMS-GW may transmit a SIP MESSAGE request to a call session control function (CSCF) serving the mobile node in order to deliver the message to the mobile node. If the mobile node is SIP-capable but is not IMS registered, the SMS-GW may instead transmit a SIP MESSAGE request to the mobile node's IP address. To obtain the mobile node's IP address, the SMS-GW may query a domain name server (DNS) that stores associations between hostnames and IP addresses of mobile nodes.
Information query
