NYSE: IDT
Products

Discover how our products can revolutionize the way you communicate and collaborate.

Voice

Explore our advanced voice solutions designed to optimize your communication workflows.

Diverse range of DID number solutions designed to enhance your communication capabilities.

Experience unparalleled communication efficiency with our advanced SIP Trunking Solutions.

Cutting-edge technology to proactively detect and neutralize spam flags on your DID Numbers.

Messaging

Wherever your audience is, our platform ensures seamless messaging across diverse channels.

Build customer journeys by fostering interactive conversations, all within the framework of your app.ย 

Connect with your audience in a simple and effective way through our cutting-edge SMS platform.ย 

BYOC

Harness the power of IDT as your chosen carrier while leveraging your platform’s advanced features and services.

Integrate Twilio with our robust carrier routing platform to achieve unparalleled Voice termination system.

Experience reliable and high-quality communication services while leveraging the advanced capabilities of Genesys.ย 

Integrate IDT with the collaborative strength of MS Teams, unlocking efficient and feature-rich communication.ย 

Experience the power of our carrier network seamlessly connected to Plivo through our cutting-edge BYOC solution.ย 

Tools

Experience the power of our online voice tools, designed to simplify communication management.ย 

Ensure the authenticity and integrity of outbound calls with our STIR/SHAKEN Verification Check tool.ย 

User-friendly tool to verify the reputation of your business number, ensuring that it remains trusted.ย 

Compare and gain insights into outbound call expenses, optimize budget, and make informed decisions.ย 

Easily estimate and compare the costs associated with different DID numbers providers.ย 

Compare inbound VoIP rates among top CPaaS providers and optimize your inbound call costs.ย 

Generate custom SMS templates.ย 

Learn

Empower yourself with the resources you need to thrive in the dynamic landscape of communication.

Articles covering a wide range of topics.

Get answers to common queries.

Find instructions to make the most of our products.

Discover telecom insights and trends.

Find definitions of popular telecom terms.

Explore how our solutions have helped businesses.

Latest telecom trends, innovations, and market insights.

Company

A global telecom partner built to meet your needs.ย 

Discover the story behind our commitment to delivering innovative solutions to connect people and businesses worldwide.ย 

Learn about our robust network infrastructure that spans across the globe, ensuring reliable and secure connectivity.ย 

Got a question, feedback, or need assistance? Our dedicated team is here to help!

Find partners or sign up for partnership programs.

NYSE: IDT
LEARN

USSD

In this article

What is USSD?

USSD (Unstructured Supplementary Service Data) is a communication protocol used by GSM (Global System for Mobile Communications) cellular networks to establish interactive sessions between a mobile device and a service provider’s computer. It enables real-time, two-way communication between the mobile device and the network infrastructure.

Unlike SMS (Short Message Service) that uses store-and-forward technology, USSD allows instant session-based communication. USSD messages are typically short strings of alphanumeric characters that are sent between the mobile device and the network.

USSD is widely used for various interactive services, such as balance inquiries, prepaid top-up, mobile banking, service activations, content downloads, and menu-based applications. It provides a quick and interactive way for users to access services and obtain information directly from the service provider.

USSD sessions are initiated by dialing a specific short code, often starting with “*.” The mobile device sends the USSD request to the network, and the network responds with a USSD message containing the requested information or a menu of options. The user can then respond by selecting an option or entering a response through the mobile device’s keypad.

USSD sessions are typically session-based, meaning that they are initiated and terminated within a single interaction. They do not require the storage or buffering of messages like SMS. USSD messages are generally free of charge or incur minimal costs compared to SMS or voice calls.

USSD is commonly used for a range of interactive mobile services, providing a convenient and real-time means of communication between mobile users and service providers.

What is the difference between USSD and SMS?

USSD (Unstructured Supplementary Service Data) is a real-time interactive communication technology that allows users to access services by dialing a specific code on their mobile devices, while SMS (Short Message Service) is a text messaging service that enables the exchange of short text messages between mobile devices.

USSD Short Codes

USSD short codes are specific numerical codes that users can dial on their mobile devices to access specific services or information. These codes are typically shorter in length compared to regular phone numbers and are used to initiate USSD sessions for interactive communication.

Share this article

Meet our wholesale voice routing

Fulfill all your voice calling needs with our category leading wholesale A-Z Voice Termination.
Try IDT Express for a $25 Credit

Get $25 Free Trial Credit

You could be interested in

Learn

UDH (User Data Header)

In the context of telecommunications, UDH stands for User Data Header. It is a field...
Learn

ICCID Number

An ICCID (Integrated Circuit Card Identification) number is a unique identifier associated with a SIM...
Learn

Average Hold Time

Average Hold Time, often abbreviated as AHT, is a key performance metric used in customer...