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Unstructured Supplementary Service Data (USSD), sometimes referred to as "quick codes" or "feature codes", is a communications protocol used by GSM cellular telephones to communicate with the mobile network operator's computers.
Unstructured Supplementary Service Data, or USSD is a communication protocol used by GSM cellular telephones to communicate with the service provider's computers. A gateway is the collection of hardware and software required to interconnect two or more disparate networks, including performing protocol conversion.
What’s the difference between USSD, MMI and SS codes? This page was last edited on 2 January 2025, at 07:51 (UTC). Text is available under the ...
GSM USSD codes - Unstructured Supplementary Service Data: list of standard GSM codes for network and SIM related functions; References
Cellular network standards and generation timeline. This is a comparison of standards of wireless networking technologies for devices such as mobile phones.A new generation of cellular standards has appeared approximately every tenth year since 1G systems were introduced in 1979 and the early to mid-1980s.
SMPP is able to carry short messages including EMS, voicemail notifications, Cell Broadcasts, WAP messages including WAP Push messages (used to deliver MMS notifications), USSD messages and others. Because of its versatility and support for non- GSM SMS protocols, like UMTS , IS-95 (CDMA), CDMA2000 , ANSI-136 (TDMA) and iDEN , SMPP is the most ...
U.S. President Donald Trump's administration is considering merging the U.S. international aid agency (USAID) into the State Department in a major revamp that would shrink its workforce and align ...
Pages for logged out editors learn more. Contributions; Talk; USSD