Data Traffic & Policy

DPI Platform

See, shape and monetize every byte on your network. PROTEI DPI gives operators complete control of data traffic, enabling application-aware tariffs, bandwidth management, zero-rating and premium service tiers that turn data growth into revenue.

PROTEI DPI/PCEF suits every type of service provider — mobile operators (MNO/MBB), fixed broadband providers (FBB) and transport carriers — with one platform for any access network and business model.

A built-in signature constructor detects flows from newly emerging Internet applications, statistical analysis identifies even obfuscated protocols, and a regularly updated signature library speeds the launch of new services. Priority-based bit-rate control and ToS/DSCP prioritization protect the experience of what matters most, while URL-based policies use external categorization databases as well as local black and white lists.

Real-time per-service charging over Gy and periodic quotas are supported, with subscriber identification via RADIUS, Gx or XML and tariffs applied per subscriber or on command from a 3GPP PCRF. Horizontally scalable and fully redundant, with no single point of failure.

Two deployment modes. In inline mode, PROTEI DPI sits in the traffic path between the gateway (PGW, UPF, GGSN or BNG) and the internet, enforcing shaping, filtering, redirection, header enrichment and charging in real time, with bypass protection. In passive mode, it receives a copy of the traffic from a TAP or mirror port and stays outside the live path, for zero-impact analytics, QoE statistics and usage reporting.

Built on DPDK. The Data Plane Development Kit is an open-source set of libraries and drivers for fast packet processing on standard x86 servers. By reading packets directly from the network card in user space, it lets PROTEI DPI reach up to 50 Gbps per CPU on COTS hardware, with no proprietary interface boards.

Policy Controller (PCRF/PCF)

Real-time policy for smarter, fairer mobile broadband. PROTEI Policy Controller (PCRF/PCF) manages policy and charging parameters for 3G, LTE and 5G subscribers, with a flexible decision engine that allocates broadband resources dynamically — adjusting bandwidth and charging per service, in real time, during a live session.

Decisions draw on service type, subscriber profile, usage history, time of day and commands from external systems such as self-care portals. Beyond bearer control, it manages content-filtering rules for parental control and corporate services. Supported interfaces:

• Gx towards the PDN-GW, GGSN or DPI to push policy and charging rules
• Rx for applications that adjust session parameters, with XML also supported
• Sy towards the OCS for policy based on spending limits
• N7 towards the SMF and N15 towards the AMF in the 5G core

Wi-Fi Offload

Add Wi-Fi capacity to your mobile network — seamlessly. Data demand is surging, and Wi-Fi is the most cost-effective complement to licensed 4G/LTE spectrum. PROTEI WIX is a market-proven offload solution that integrates Wi-Fi into the mobile core, so subscribers can receive calls and SMS on their own number over Wi-Fi.

Operators can offer bandwidth-efficient FMC services — Wi-Fi in the office, 4G outside, one MSISDN and one bill — and Wi-Fi roaming through WLAN aggregators. Data and voice are charged in real time against the subscriber’s main account, for prepaid and postpaid via CAMEL and Diameter.

Bill Shock Prevention Platform

Happy roamers, fewer disputes, protected margins. Bill shock frustrates customers and costs operators unrecoverable revenue and wholesale charges. PROTEI Data Usage Control and Bill Shock Prevention notifies roaming subscribers in real time of their data consumption and costs.

Subscribers and operators set spending and usage thresholds; the system sends SMS alerts as limits approach and suspends the service once reached — encouraging confident data use abroad while preventing fraud and misuse of flat-rate roaming plans.