Advanced Diameter Edge Agent for Tighter Security

Sitting at the edge of the network is the SVI-DEA providing enhanced security for authorisation, authentication and subscriber policy across Diameter based LTE networks

Diameter Edge Agent DEA

At the edge of the Diameter network sits the Diameter Edge Agent.

The Diameter Edge Agent's primary function is to provide network security with secure exchange of authentication, authorisation and subscriber policy.

Out of the box the SVI-DEA provides topology hiding, message normalisation, DOS and DDOS protection whilst also delivering load balancing and congestion control functionality.

Diameter Edge Agent

At the network edge the Diameter Signalling Controller deploys advanced Diameter Edge Agents for tighter security and normalisation providing.

  • Topology Hiding
    A security function implemented in the application layer whereby Diameter identity information from all messages leaving a local Realm are concealed.

  • Security
    Out of the box the DEA provides topology hiding, DoS and DDoS protection while delivering load balancing and congestion control.

  • Message Screening
    All traffic into the network go via the DEA where message screening determines who enters the network and from where.

  • Admission Control
    Full configuration in terms of protocol compliance and custom policy setup, filtering, comparison to whitelist & blacklists, throttling and message manipulation.

  • DoS, DDoS Protection
    The DEA protects Diameter servers and the network from overload and signalling storms brought on by DoS and DDoS attacks.

  • Transport over TLSPSecn
    IPSec and Transport Layer Security allow for intra-realm security providing advanced encryption between endpoints.

  • Onboard Firewall
    The Edge Agents onboard Diameter firewall protects the network and subscribers from privacy leaks and denial of service attacks.

  • Overload Protection
    Provides advanced load balancing and throttling mechanisms to insure the optimum management of the Diameter network.

  • Message Normalisation
    The DEA acts as a mediation platform ensuring normalisation of messages across the Diameter network.

High Availability

Carrier grade reliability is supplied through a comprehensive range of high availability options.


Supporting multiple interface types and legacy SS7 TDM, NGN IP SIGTRAN and IMS / LTE / 4G support.


Comprehensive web based Management System delivers on-board configuration, monitoring and debugging.

Training Video's

Watch our series of Diameter Signalling training videos and find out more about our Diameter products. 

Commercial Off The Shelf

Supplied on standard Dell servers optionally with dedicated E1/T1/STM-1 support.

Virtual Deployment

Virtual Machine deployed on industry standard servers in a data centre environment using a hypervisor, i.e. VMware.

Cloud Deployment

Delivered as a Virtual Network Function (VNF) in AWS, OpenStack, Nokia and Google cloud infrastructure.

Solving the 4G LTE Mobile Roaming Puzzle Whitepaper

Squires Technologies looks at the challenges faced by operators providing roaming services to their subscribers, as the number of 4G LTE networks increases.

Trusted by Customers Worldwide

Squire Technologies solutions enable over 30 billion transactions per second and 11 trillion transactions per year. We have deployments in over 6 continents, in 150+ countries and with 400+ customers. 


Transactions per second


Transactions per year


Telecom Operators



Check out what our customers are saying about us here at Squire Technologies.

Further Information

Solving the 4G LTE Mobile Roaming Puzzle

Read our latest whitepaper on solving the 4G LTE mobile roaming puzzle

Diameter Signalling Controller Presentation

Download our SVI-DSC Diameter Signalling Controller Presentation

How Does a Diameter Signalling Controller Work

Watch our Signalling Controller Video and find out more

+44-1305 757314

This email address is being protected from spambots. You need JavaScript enabled to view it.

64 High West Street, Dorchester,
Dorset, DT1 1XA,
United Kingdom

© Squire Technologies Ltd 2022. All Rights Reserved.