USSD – Unstructured Sumplentery Services Data

Unstructured Supplementary Service Data (USSD) is a technology unique to GSM. It is a capability built into the GSM standard for support of transmitting information over the signaling channels of the GSM network. USSD provides session-based communication, enabling a variety of applications.


USSD is defined within the GSM standard in the documents GSM 02.90 (USSD Stage 1) and GSM 03.90 (USSD Stage 2).

Key attributes:

* USSD is instead session oriented, unlike SMS, which is a store-and-forward, transaction-oriented technology.

* Turnaround response times for interactive applications are shorter for USSD than SMS because of the session-based feature of USSD, and because it is NOT a store and forward service.

* Users do not need to access any particular phone menu to access services with USSD- they can enter the Unstructured Supplementary Services Data (USSD) command direct from the initial mobile phone screen.

* USSD commands are routed back to the home mobile network’s Home Location Register (HLR), allowing for the virtual home environment concept – the ability for services (based on USSD in this case) to work just as well and in exactly the same way when users are roaming.

* Unstructured Supplementary Services Data (USSD) works on all existing GSM mobile phones.

* Both SIM Application Toolkit and the Wireless Application Protocol support USSD.

If you is a subscriber of Operator Telecommunication, USSD is implemented on Credit Check like Telkomsel is *888# is application that build on USSD Protocol. Next Developmen USSD is on UMB – USSD Menu Browser. You can see on Next Thread.

5 Responses to USSD – Unstructured Sumplentery Services Data

  1. edwient berkata:

    UMB ku wes dadi loh pak.. eehehehe..

  2. music berkata:

    very interesting.
    i’m adding in RSS Reader

    Hehehe Thanks But All At My Site is Indonesian Language 😀

  3. lelewati berkata:

    mas berguna banget aku dari kemaren nyari deskripsi soal UMB susah banget

  4. Archana berkata:

    hi nice artical but can you give me some leads to delevoping menu base USSD application

  5. Plugie berkata:

    Tau gak cara bikin sistem USSD mau dong….
    Gimana sih caranya?
    Gw lagi ada project buat bikin SMS destruct di TSEL pernah denger gak?
    Bantuin dong gimana cara bikin SMS destruct itu ??

    Numpang info:
    “Mau bisnis aplikasi kamus di hand phone baca di TANPA MODAL DAL DAL DAL .. “

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