USSD (Unstructured Supplementary Service Data)
USSD (Unstructured Supplementary Service Data) is a Global System for Mobile(GSM) communication technology that is used to send text between a mobile phone and an application program in the network. Applications may include prepaid roaming or mobile chatting.
USSD is similar to Short Messaging Service (SMS), but, unlike SMS, USSD transactions occur during the session only. With SMS, message scan be sent to a mobile phone and stored for several days if the phone is not activated or within range.
The Wireless Application Protocol (WAP) supports USSD. USSD is defined in the GSM standard documents GSM 02.90 and GSM 03.90.
SS7 USSD Center |USSD gateway |USSD platform
The USSD platform, Unrestricted Supplementary Service Data (USSD), is used by the mobile interaction business to send text between a mobile phone and an application program interacting promptly with end-user. USSD gateway transactions only take place while mobile phones are turned on. USSD messages travel over SS7 signaling channels, providing a fast way for customer connections and data transfer. USSD platform transactions respond in less than a second.
The USSD platform solution is suitable for:
Mobile initiated and network initiated USSD for mobile user interaction.
News with use of RSS feeds
Chat services
Quiz, survey, Q&A service
Polling service
Banking
Enabling VAS based on USSD gateway interaction and cost savings
The USSD center has full SS7 interfaces and flexible IP interfaces that allow interfaction with applications that manage value added services.
Operators in the ICT industry can use the USSD gateway for management of USSD transactions between mobile and the internet-based part of the industry.
This enables the operators of the USSD center to offer value added services based on USSD interactions with mobile end users and to save costs in the operations.
Specifications for USSD platform:
Up to 8 SS7 TDM E1 lines, up to 16 signalling time slots per E1
SIGTRAN M3UA
Runs on industry standard x86-64 server hardware with digital interface cards (e.g. Digium, Sangoma, Openvox)
Network initiated (Mobile Terminated) USSD
User initiated (Mobile Originated) USSD
Up to 60,000 simultaneous sessions
Distributed architecture (USSD service and E1/SIGTRAN MTP3 service on different servers)
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