Title: SMS Firewall

URL: https://www.infobip.com/telecoms/anam-protect/sms-firewall

# Best-in-class SMS firewall

Ensure customer protection on your mobile network with our state-of-the-art SMS Firewall. Maximize revenue, eliminate messaging threats, and monetize traffic with our leading A2P security platform and telco consultants.

[ Contact an expert ](/contact)

## Secure and monetize your A2P SMS traffic

#### Secure your A2P messaging business and customers

Protect your A2P revenue and shield customers from messaging scams by monitoring real-time inbound and outbound traffic from both SS7 and SMPP connections.

#### Protect customers against SIM box fraud

Secure your customers against SIM box fraudsters with sophisticated filtering and analytical tools. Target and block SIM farm traffic without disrupting legitimate customers.

#### AI-powered fraud protection

Beat fraud with minimal human effort by using machine learning algorithms, NLP technology, and analytics. This enables us to reliably identify and filter suspicious traffic in real-time and without human error.

#### Gain real-time traffic insight

Take control of your network with customized traffic segmentation, local and international traffic differentiation, and analytics per brand, industry, and vertical – all from a single web interface.

#### Leverage our monetization expertise

Our 15+ years of experience and in-depth industry knowledge helps telecoms maximize their A2P traffic revenue from international and local brands.

## Discover how businesses monetized A2P traffic with SMS firewall

[ Read all customer stories ](/customer)

## The most rewarded platform

By industry experts

[    ![Gartner® Magic Quadrant™ for CPaaS 2025 - Infobip is named a Leader](https://ddtht5qj5p2qu.cloudfront.net/uploads/2024/12/gartner-4.svg)  Infobip is named a Leader

 Gartner® Magic Quadrant™ for CPaaS 2025

 

 ](https://www.infobip.com/analyst-reports/gartner-magic-quadrant-cpaas-2025)



  ![Juniper Leaderboard 2025 - CPaaS Established Leader](https://ddtht5qj5p2qu.cloudfront.net/uploads/2024/12/juniper-4.svg)  CPaaS Established Leader

 Juniper Leaderboard 2025

 

 





  ![MetriRank CPaaS Report 2024 - Infobip is named as No. 1 CPaas provider](https://ddtht5qj5p2qu.cloudfront.net/uploads/2024/12/metrigy-1.svg)  Infobip is named as No. 1 CPaas provider

 MetriRank CPaaS Report 2024

 

 





  ![CPaaS Universe Report 2025 - Infobip is named a Leader](https://ddtht5qj5p2qu.cloudfront.net/uploads/2024/12/omdia-1.svg)  Infobip is named a Leader

 CPaaS Universe Report 2025

 

 





  ![IDC MarketScape 2025 - Infobip is named a Leader in worldwide CPaaS](https://ddtht5qj5p2qu.cloudfront.net/uploads/2024/12/idc-3.svg)  Infobip is named a Leader in worldwide CPaaS

 IDC MarketScape 2025

## Frequently asked questions

<accordion>
<accordion-item title="What is SMS firewall?">
SMS Firewall is a solution that helps Mobile Network Operators to control their SMS ecosystem and seamlessly protect their subscribers from various frauds and unwanted SMS and SMS-related traffic.
</accordion-item>
<accordion-item title="How does SMS firewall work?">
SMS Firewall protects a Mobile Network Operator’s SMS ecosystem by analyzing traffic and blocking fraudulent and grey route SMS traffic in real-time, preventing any harm to subscribers and guarding MNO business from any commercial exploits.
</accordion-item>
<accordion-item title="What protocols are used to terminate A2P SMS?">
Frequently used protocols for A2P terminations are SMPP and SS7.
</accordion-item>
<accordion-item title="What is SMPP protocol?">
SMPP protocol is the most widely used protocol for A2P SMS termination. SMPP protocol is an open industry standard designed for the transfer of short messages between two endpoints.
</accordion-item>
<accordion-item title="What is SMS traffic segmentation?">
SMS traffic segmentation is a categorization of SMS traffic based on the origin, type, use case, etc. The SMS segmentation is performed by an MNO to establish control over the messaging ecosystem and ensure all traffic termination is charged correctly and fairly.
</accordion-item>
<accordion-item title="When is SMS firewall used?">
SMS Firewall are essential for Mobile Network Operators to secure the messaging ecosystem and with that protect their subscribers from messaging frauds. Also, SMS Firewall are a precondition for A2P monetization.
</accordion-item>
<accordion-item title="What are SMS firewall features?">
There are various SMS Firewall features including:

- Real-time traffic filtering on fraud and unwanted SMS traffic
- Reporting and traffic insights
- Phishing, malware, and spam detection
- A2P grey route detection (SIM Boxes, Leased GT, Interconnect abuse, etc.)
</accordion-item>
<accordion-item title="What is a grey route?">
A grey route is a name widely used in the Telecom world for all routes carrying A2P traffic without an MNO’s knowledge or authorization. Some of the most popular grey routes are: SIM Boxes, Leased Global Title roaming agreements abuse, A2P grey traffic over interconnect, abuse, or direct business connections for different use cases beyond agreed and approved cases between the MNO and the partner.
</accordion-item>
<accordion-item title="What is Smishing?">
Learn what smishing is and how to prevent it. 
</accordion-item>
<accordion-item title="What is Flubot?">
Learn what SMS Flubot is and how telcos can protect end users. 
</accordion-item>
<accordion-item title="What are Flash Calls?">
Learn what a flash call is and how they work. 
</accordion-item>
</accordion>

## Read more about Anam Protect SMS firewall

[ View all resources ](/resources)

##  Secure your mobile network and revenue

 We secure messaging traffic on over 120 mobile networks serving 1.1 billion mobile subscribers. Contact us to protect and monetize your network.

 [ Contact an expert ](/contact) 









 ![](https://cdn-web.infobip.com/uploads/2025/01/infobip-woman-texting-1.jpg)