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VOCORD SMS Antifraud SMS-fraud control

VOCORD SMS Antifraud is a cellular network SMS-fraud and SMS-spam detection system.

The most popular type of fraud in cellular networks is using of shortcodes in illegitimate purposes. Such kind of fraud does regular damage to not only thousands of subscribers but also service providers.

Because of fraud, operators suffer the following losses:

  • Financial loss
  • The provider service shall be deemed to be rendered even though a subscriber has not paid an account.
  • Injury to reputation
  • Subscribers often shift the blame for fraud to their service providers.

VOCORD SMS Antifraud system is oriented to eradication of such kind of fraud.

VOCORD SMS Antifraud is a hardware and software system analyzing SMS message traffic parameters in a mobile phone service provider network and solves related problems.

  • Detection of bursts of virus activity
  • Fraud identification
  • Shortcode identification.

Operating principle

The system registers SMS-messages transmitted between CPA (Content Provider Access) center and SMPP Proxy. VOCORD SMS Antifraud builds up a database handled by the system operator. Using built-in analytical tools, the operator estimates different traffic parameters pointing at fraudulent or suspicious sending of SMS-messages.

VOCORD SMS Antifraud operates in receiving mode only; this does not affect the mobile phone service provider network.

Report examples

  • Shortcode reports over a particular period of time. For each shortcode, a number and an integrated cost of SMS-messages are displayed.
  • Content provider (telephone directory) reports. A number and an integrated cost of SMS-messages are displayed.
  • Selected content provider reports over a particular period of time. For each shortcode and for all providers in total, a number and an integrated cost of SMS-messages are displayed.
  • Selected content provider reports over a particular period of time. Classification is by semantic features of SMS-messages. A number and an integrated cost of SMS-messages by days or weeks over a particular period of time are displayed.
  • Oversubscription reports. A list of subscribers (telephone numbers) whose specified limit is exceeded, is displayed. A number of outgoing SMS-messages by days and over the period under review is displayed.
  • Root prefix reports. A root prefix length and a content provider are specified. A number and an integrated cost of SMS-messages over a particular period of time are displayed.

VOCORD SMS Antifraud system became a technical basis for the Mobile Antifraud Program conducted by OJSC "Megafon".

  • Analysis of SMS message traffic and attributes
  • Database search for SMS messages by various attributes and their combinations
  • Analysis report generation
  • Search for SMS messages by semantic features over various periods of time
  • Export of SMS message parameters, attributes, operator activity history to Microsoft Excel
  • Export of statistical data to SAP Business Objects, and report generation
  • Storage and representation of SMS messages in UNICODE format
  • Full logging of system operator actions
  • Flexible security settings: Multi-user distribution of user and user group access rights

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1. Information Processing Server СРА VOCORD SMS Antifraud
Hardware-software module which enables real-time receiving and processing of protocol stack data up to SMPP level followed by output of results to storage servers.

2. Record Processing and Long-Term Storage Server VOCORD SMS Antifraud
Hardware-software module which enables receiving of incoming data on SMS and attributes from CPA modules, storage of incoming data on SMS and attributes as well as indexing.

3. Operator’s Workstation
Software module whereby a system operator performs content searching by various attributes as well as data exporting, event log viewing, etc.

Parameter Setting
Architecture Client-server
Protocol processing SMPP protocols in real-time
Average sms traffic speed 500 SMS/s
Peak sms traffic speed up to 1000 SMS/s
On-line data update rate Up to 5 minutes
Supported OSs (Server) Microsoft Windows 2003, 2008
Supported OSs (Client) Microsoft Windows XP, Windows 2003, Windows 7, Windows 2008
Supported databases (Server) Microsoft SQL Server 2008