Ubiquitous, Interactive & Secure
Messaging

PAiCore’s Unstructured Supplementary Service Data (USSD) Gateway powers interactive, menu-based, secure messaging. Each USSD interaction is session-based and leaves no trace on the phone, which makes it ideal for high impact applications such as mobile banking, micro-insurance, customer self-care access and national emergency services.

By implementing the USSI standard (USSD over the IMS as per 3GPP TS 24.390), the gateway acts as a unified signaling bridge that enables legacy USSD services to operate over 4G and 5G networks. This architecture performs a transparent translation between traditional SS7/MAP environments and the IMS core. Signaling with IMS Core Network nodes such as the S-CSCF over SIP and the HSS via either SS7 MAP or Diameter Sh, ensures service continuity and interoperability throughout the network’s evolution.

PAiCore’s SDP (Service Delivery Platform) is deployed together with our USSD Gw & USSI to provide an API layer that allows businesses to integrate their existing business flows and applications directly with a USSD menu. The SDP offers a user-friendly Service Creation Environment (SCE) which reduces time to market of USSD services from several hours or even days, to only a few minutes.

As an open source solution, it offers operators a fully owned platform with security and control, able to access telecom networks via SS7/SIGTRAN, Diameter, SIP, SMPP or HTTP.