Text-to-Speech
The Leading Mobile Network Operator
Convert your SMS into a voice call for those customers where text alone isn’t enough.
Est 2006
Text-to-Speech Delivery
Stour’s Text-to-Speech (TTS) service enables the conversion of SMS messages into automated voice calls for delivery over our SIP network. This ensures that critical information can still be communicated when SMS delivery is not possible, or customers are unable to read/receive an SMS, expanding reach and maintaining service continuity.
TTS is ideally suited for transactional use cases, such as one-time passcodes, parcel delivery updates, and service notifications.
As with all Stour’s services, our TTS service is hosted on our resilient, cloud-native, mobile operator infrastructure.
Simple Integration
Access via Stour’s SMS integration for seamless campaign execution. Clients can choose either SMPP or HTTPS connectivity to send their SMS to Stour for TTS conversion and delivery.
User Experience Testing
TTS is recommended for short, clear, transactional content where messages can be delivered in a clear and user friendly manner. Our team of engineers will work with clients to test and refine their message templates for optimum TTS conversion and delivery.
Reliable Calls
Clients are advised to respect Telephone Preference Service (TPS) registrations where applicable, and observe quiet hours when using TTS. Stour will work with clients to support UK best practice for reliable and reputable call delivery over our carrier network.
Mobile and fixed lines
Originally launched for fixed line message delivery, TTS is now available for mobile subscribers too, enabling Stour’s clients to delivery accessibility requirements, provide user choice, and reach those unable to read traditional SMS.
Stour Solutions.
SMS
Global SMS reach is our starting position. We can enhance your SMS service with our platforms and global connections.
Voice
Mobile services for a connected world. Stour provides cost-efficient and secure solutions.
Data
Data access via Stour SIM cards and the Stour mobile network. We can provide your Global data reach backed up by our high service levels.
Why Work with Stour?
Choosing the right telecom partner is critical for business success - Stour delivers secure, scalable, and hassle-free solutions that keep you connected.
Reliable & Secure
As a fully regulated mobile network operator since 2006, we provide enterprise-grade solutions with industry-leading security and compliance.
Trusted by Industry Leaders
We work with major organisations including BT, delivering scalable telecom solutions that power businesses across the UK and beyond.
No-Nonsense Connectivity
Our mobile, voice, and messaging services are built for efficiency - seamless integration, minimal downtime, and no unnecessary complexity.
Flexible & Scalable
Whether you need voice, SMS, numbering, or custom software integrations, we design solutions that grow with your business.
Expert Support
With decades of experience, our team understands telecom inside out, ensuring you get the right solutions without the red tape.
