Products Hub
Simplifying the Global Complexity of Communication

Create experiences customers value to securely engage, convert, support and retain them.

See all products
Customer Engagement
Communication Channels
Platform and Connectivity
Create Memorable Customer Experiences

Solutions refined over 12 years and 40,000 customers, blending customer experience, technology and data.

Find out more
Your business. Just more of it.

Increase your solutions portfolio with the Infobip CPaaS and CCaaS solution. Benefit from the added value brought by our communication platform for enterprise customer engagement, authentication, and security. Amplify your customer’s digital transformation journey with Infobip.

Maximize your revenue with Infobip

We are a trusted partner in expanding business messaging, bringing new revenue and building enterprise relationships with top-notch customer experience.

Find out more
Telecom solutions
Get better by example and experience

Real-world Insights, events and case studies to learn and adapt to your needs.

Flash USSD: Sending Flash SMS Through Infobip SMS API

Flash USSD: Sending Flash SMS Through Infobip SMS API

Flash USSD notifications are one-way SMS messages, delivered straight to a customer's mobile device. Learn how and when to use them.

Flash USSD notifications are one-way SMS messages, delivered straight to a customer’s mobile device. Flash SMS messages are popular for sending out one-time passwords and notifications with USSD messages. Learn more with this guide on how to send flash SMS messages.

Send secure, real-time messages via flash SMS

It’s getting easier every day to send high importance SMS messages, one-time PINs, and time-critical communications.

As a service provider who uses flash SMS, you don’t have to worry if your clients have enough storage space on their mobile phones, or if the information you’re sending them gets stolen along with their phone.

SMS messages have their own classification, while the regular SMS message is classified as a Class 1 message, flash SMS messages are classified as Class 0 messages, which classifies them as most important SMS messages. The difference is that Class 1 messages are stored on users’ mobile phone SIM card or phone memory (depending on memory availability) by default.

On the other hand, Flash SMS messages appear directly on the main screen without any user interaction and are not automatically stored in the inbox. Your users still have the option of saving these messages, with the appropriate sender ID, if they chose to do this, but it’s not done automatically.

However, in case of multiple flash messages being sent, it’s important to keep in mind that your users will only be able to see the last message they receive.

This is how easy it is to send a flash SMS to one user:

POST /sms/1/text/advanced HTTP/1.1
Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==
Content-Type: application/json

         "text":"Your balance is 1345,68€",

Are you looking for a reliable SMS partner?