IP-based USSD communications

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United States of America Patent

PATENT NO 10701112
APP PUB NO 20180041550A1
SERIAL NO

15629976

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Abstract

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A USSD (Unstructured Supplementary Service Data) message may be transmitted by a communication device to an IMS (IP Multimedia Subsystem) within a SIP (Session Initiation Protocol) INVITE message, where it is received by a TAS (Telephony Application Server). The TAS sends the USSD message to an HSS (Home Subscriber Service) of the IMS using an existing Diameter Sh interface between the TAS and the HSS. The HSS then communicates with a USSD gateway to obtain a USSD response, which is sent back to the TAS over the Diameter Sh interface. The TAS sends the USSD response to the communication device within a SIP BYE message.

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Patent Owner(s)

Patent OwnerAddress
T-MOBILE USA INC12920 SE 38TH STREET BELLEVUE WA 98006

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mufti, Shujaur Snoqualmie, US 73 470
Sial, Muhammad Ejaz Snoqualmie, US 8 47

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