SMS

Global SMS delivery

Enterprises trust our APIs to send and receive billions of text messages around the world.

Start quickly, scale easily, engage individually

One and two-way SMS

Send one-way alerts, notifications, and reminders at the perfect moment. When you need a response, use two-way SMS to create engaging conversations, letting customers reply with a few taps of the screen.

Engage around the world

As a Tier 1 network with direct carrier connectivity and relationships across the US, UK, and the rest of the world, we ensure that your messages are delivered to customers no matter where they are.

Adaptable scalability

Don’t worry about underlying infrastructure, we take care of that. Large volumes or bursts of traffic are easily managed with our globally distributed platform

SMS for the always-on, global enterprise

High performance infrastructure

We champion reliability, offering a high-availability cloud deployment across multiple geographic regions, automated monitoring, and zero-downtime upgrades.

Explore new channels 

Start with SMS and then expand to new channels like MMS, RCS, and WhatsApp. Through our APIs, it's quick and easy to add new channels to your communication mix.

On-demand support

We pride ourselves on offering around the clock (24x7) support with dedicated account management, API documentation, and developer resources. Implementation services are available on demand. 

Get sending in no time

Easily embed APIs

Easily add SMS communications to your customer journeys by integrating our SMPP or HTTP (REST) APIs to leverage our messaging infrastructure with carriers. Check out our Developer Center for API documentation and sample code.


Rapidly automate customer journeys

Use our low-code flow builder to design, create, and launch interactive customer journeys faster than ever before.


verified sms Send messages that customers can trust

Verified SMS (VSMS) adds sender verification and branding to your SMS messages, so new and existing customers know exactly who’s contacting them. VSMS helps to send SMS messages that build trust, prevent fraud, and enhance interactions through a chat experience.

Customer Success Story Centrica IVR to SMS call deflection

Find out how we helped Centrica to better manage high call volumes and reduce cost-to-serve by integrating an SMS chat call deflection solution into their contact center IVR.

"imimobile’s solution for IVR call deflection to SMS has been a game-changer for our contact center and it’s pleasing to hear positive feedback from our customers and agents who are using the service." - Gemma Crask, Product Owner, Messaging and Social Media, British Gas

Key features

  • Multi-part SMS

    Don't let 160 characters limit your SMS use cases and messaging experience. Send up to 765 characters per message with multi-part SMS support.
  • Unicode support

    Send messages to customers in their regional or local languages by leveraging Unicode SMS support.
  • Number lookup

    When so many numbers in circulation, identify various factors such as number format, carrier and roaming status in order to engage the right customers.
  • Route optimization

    Our intelligent routing algorithms select the optimal path for messaging delivery based on traffic volumes, bandwidth and price.
  • Data security and privacy

    Use VPN tunnels and SSL (TLS V.1.2) to encrypt data sent over public or private networks. Ensure compliance with built-in GDPR, HIPPA, CCPA, and ISO 27001 controls.
  • Local numbers

    Flexible sender ID selection that fits your needs with one of the following: Short code, long code (toll-free and 10DLC), or alphanumeric code.
  • Branded SMS

    Automatically upscale SMS to a richer format of branded text (RCS or VSMS) to increase customer trust and drive engagement.
  • Delivery receipts

    Track messaging success by assessing delivery status in real-time through our reliable deliver receipts and detailed error codes.

Get started with SMS