SmartGuard

Protects telecom networks from spam, fraud, and signaling attacks with intelligent filtering and real-time traffic analysis.

SmarGuard Messaging Firewall – Key Features

SmartGuard is an sms firewall built for operators that want tighter control over messaging traffic and revenue. It monitors A2P and P2P messages in real time, blocks grey routes, SIMBox activity, fraud patterns and spam, and adds policy driven protection for devices and signalling so mobile operators, MVNOs and CSPs can grow messaging safely and predictably.

Messaging Security and Firewalls

SmartGuard strengthens network messaging across smsc, sms gateway provider systems, sms service api layers and integrated sms channels.

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SMS Firewall Solution for Mobile Operators

SmartGuard inspects all inbound and outbound messages in real time. It blocks harmful traffic, maintains routing integrity and protects subscribers from unwanted content.
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AI Powered Messaging Security Firewall

Machine learning models classify messages based on historical behaviour, sender profiles and route patterns.
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Telecom Anti Spam and Grey Route Detection

SmartGuard identifies repeated content bursts, irregular routing, bypass attempts and spam campaigns that undermine operator billing and subscriber trust.
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SmartGuard SMS Firewall by Enghouse Networks

SmartGuard works as a core component of VAS in One, integrating with ussd gateway, cloud mms and mobile vas services.

Fraud Detection and Revenue Assurance

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A2P SMS Fraud Prevention Platform

SmartGuard tracks enterprise traffic and blocks attempts to avoid A2P fees. Operators regain control of monetisation and routing quality.
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Real Time SMS Filtering and Revenue Assurance

Messages are screened, scored and processed in real time to reduce leakage and improve billing accuracy.
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SIMBox and Campaign Fraud Protection for Operators

SmartGuard identifies SIM farms, device clusters and abnormal campaign activity linked to fraudulent routing. It supports fraud management system and fraud shield processes.
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Grey Route Control

SmartGuard uncovers routes that bypass tariffs and automatically enforces policy rules.

Machine Learning Based SMS Fraud Detection

SmartGuard uses models trained on global and regional traffic behaviour.

It identifies early risk indicators such as:

  • abnormal sender patterns
  • irregular route changes
  • unexpected volume spikes
  • device movement inconsistencies

5G Ready Messaging Firewall Solution

SmartGuard supports 5G messaging, signalling and policy enforcement.

It integrates with diameter routing agent, network dra and dsc controller components in VAS in One.

Compliance and Anti Spam Solutions

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Comprehensive Messaging Security and Compliance Platform

SmartGuard provides reporting tools, logs and dashboards for regulatory or internal audit use.
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Policy Enforcement Controls

Operators define rules per source, destination, enterprise, message type or routing scenario.
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Firewall Spam Management

Operators can identify and respond to spam cases with full visibility across messaging layers.

SmartGuard Modules

Below are the three modules that make up the SmartGuard suite. These map to the tabs on the existing page.

SmartGuard Messaging Firewall

The Messaging Firewall is the core module focused on sms firewall protection.

Capabilities include:

  • Real time message screening
  • Grey route detection
  • SIMBox identification
  • Spam and campaign filtering
  • Machine learning pattern analysis
  • A2P classification and billing protection
  • Message throttling, content rules and routing controls
  • Integration with smsc, sms gateway provider and integrated messaging nodes

Technical Notes:

  • Supports SMPP, SS7 MAP, SIP, HTTP and REST interfaces
  • Fits into virtualised and cloud deployments
  • Works with 2G, 3G, 4G and 5G messaging flows
  • Scales horizontally for high traffic environments

SmartGuard EIR

SmartGuard EIR validates device identity and protects network access.

Capabilities include:

  • IMEI validation
  • Stolen device blocking
  • Device status checks (blacklist, whitelist, grey list)
  • Correlation with subscriber (IMSI) profiles
  • IoT device screening for sms or ussd activity

Technical Notes:

  • Integrates with HLR, HSS and UDM
  • Supports GSMA standards for device identity
  • Useful for IoT fleets and multi device operators
  • Reduces fraudulent device onboarding

SmartGuard Diameter Firewall

The Diameter Firewall protects signaling across LTE and 5G networks.

Capabilities include:

  • Detection of malformed or suspicious Diameter messages
  • Blocking topology discovery attempts
  • Safeguarding subscriber profile access
  • Controlling interconnect Diameter traffic
  • Protecting roaming interfaces

Technical Notes:

  • Aligns with GSMA FS.19
  • Integrates with diameter routing agent and network dra
  • Secures S6a, S6d, Cx, Sh and other Diameter reference points
  • Prevents signaling overload or spoofing attempts
  • Supports 5G evolution paths

SmartGuard Features

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Centralised Management Console

Operators gain full visibility across messaging, device validation and signalling.
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Multi Layer Inspection

SmartGuard reviews message content, device identity and signaling behaviour simultaneously.
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Rule Based and ML Based Filtering

Combines strict policy controls with adaptive models.
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High Availability and Scale

Supports clustered deployment, load balancing and geo redundancy.
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Cross Platform Integration

Connects to smsc, mmsc, cloud mms, ussd gateway and integrated messaging systems using standard interfaces.

All the features and capabilities you need to
take your business to the next level

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Revenue Protection:
SmartGuard stops grey routes, SIMBox activity and fraudulent campaigns.
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Messaging Integrity:
Subscribers receive cleaner, safer traffic with reduced spam.
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Operational Efficiency:
Reduced false positives, improved visibility and faster issue resolution.
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5G Preparedness:
Diameter Firewall and integration with VAS in One components support future core evolution.
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Regulatory Support:
Logs, audit trails and reporting strengthen enforcement of national spam, fraud and data requirements.

Technical Information

Supported Interfaces

  • SMPP
  • MM7
  • HTTP
  • REST API
  • Diameter
  • SS7 MAP and CAP

Supported Network Domains

  • 2G, 3G, 4G, 5G
  • Messaging
  • Signalling
  • Device identity
  • IoT messaging profiles

Deployment Models

  • Virtualised (VM)
  • Containerised (Kubernetes)
  • Private cloud
  • Hybrid cloud

Performance

  • Multi million messages per hour
  • Low latency inline filtering
  • Horizontal scaling
How we help

If you want to strengthen your messaging security, protect A2P revenues or review gaps in your current firewall setup, our team can support you. We work with mobile operators, MVNOs and CSPs to assess traffic patterns, identify grey route or SIMBox exposure and map the right SmartGuard modules to your network.

Whether you need a technical review, a proof of concept or guidance on integrating with smsc, sms gateway provider systems or signalling nodes, we can walk you through the options. Tell us what challenge you’re trying to solve and we’ll help you define a clear path forward.

FAQs

What is SmartGuard SMS Firewall by Enghouse Networks?

SmartGuard is an sms firewall that protects mobile operator messaging from grey routes, SIMBox activity and spam across A2P and P2P channels. 

Does SmartGuard detect grey routes?

Yes. SmartGuard identifies routing paths linked to tariff bypass attempts. 

What does SmartGuard EIR do?

It validates device identity using IMEI and blocks stolen or fraudulent devices.

What does the SmartGuard Diameter Firewall protect?

It protects LTE and 5G signaling from misuse, spoofing and unauthorized access. 

Can SmartGuard integrate with existing smsc and sms service api systems?

Yes. It connects through standard interfaces and fits within existing messaging flows.

Does SmartGuard support compliance?

Yes. It provides logs, dashboards and audit data for internal and regulatory use.

How does SmartGuard help operators recover A2P revenue loss?

SmartGuard blocks grey routes and SIMBox activity that divert A2P traffic away from official billing channels. It improves revenue capture by enforcing proper routing and tariff rules.

Can SmartGuard analyse traffic without degrading messaging performance?

Yes. SmartGuard filters traffic at line rate and maintains low latency while inspecting messages across smsc, sms gateway provider and integrated sms environments. 

Does SmartGuard support enterprise whitelisting and routing control?

Yes. Operators can define rules for approved enterprise senders, dedicated routing paths, message types and throughput thresholds.

How does SmartGuard detect fast changing fraud patterns?

Machine learning models track behaviour shifts, content frequency, route anomalies and traffic bursts. They update continuously based on new inputs. 

Can SmartGuard identify international spam or cross border grey routes?

Yes. SmartGuard reviews routing paths across domestic and international links and identifies traffic inconsistencies associated with cross border bypass attempts. 

Does SmartGuard integrate with operator reporting and analytics systems?

Yes. It exports data to external BI, regulation, fraud management system or monitoring tools through APIs or standard logging interfaces. 

How does SmartGuard support IoT device messaging security?

It validates device identity through SmartGuard EIR, monitors usage patterns and blocks IoT endpoints that generate abnormal messaging traffic. 

Can SmartGuard operate as both inline and monitoring mode?

Yes. SmartGuard can block traffic inline or observe traffic in monitoring mode depending on operator needs. 

What protocols does SmartGuard use to protect 4G and 5G signalling?

SmartGuard Diameter Firewall protects Diameter interfaces such as S6a, S6d, Cx and Sh. It prevents misuse, spoofing and unauthorized access across LTE and 5G cores. 

Can SmartGuard work in multi operator or MVNO environments?

Yes. SmartGuard can segment traffic per operator, MVNO or enterprise. Rules, reporting and routing decisions can be managed independently for each tenant.