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Voice API

Turn phone calls into secure, actionable voice data using Orange’s operator-grade programmable Voice API

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Voice API: make voice programmable

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A new chapter is opening for developers 🚀

Voice API gives applications and services direct access to programmable calling capabilities through Orange’s telecommunications infrastructure. Developers can create and manage inbound or outbound calls, orchestrate voice scenarios, connect participants, retrieve media files and integrate voice data into their own platforms.

Instead of handling the phone call as an isolated interaction, Voice API turns it into a reusable digital asset that can feed AI models, CRM systems, AI agents and business applications.

Built on Orange’s network capabilities, Voice API provides a secure and scalable foundation for creating new voice-enabled products, automating communication workflows and enriching existing applications.

Build complete voice-enabled solutions

Voice API can be used as the core foundation of a standalone programmable-voice solution. On its own, it can:

  • Create and manage outbound calls.
  • Handle calls received on allocated numbers.
  • Play audio files or generate speech.
  • Collect keypad and speech input.
  • Connect two callers or create conferences.
  • Change a voice scenario during a live call.
  • Receive call and conference status callbacks.
  • Start and monitor live transcription.
  • Store, retrieve and download supported media files.
  • Connect external bots, applications and business workflows.

It can also be combined with complementary Orange APIs to create broader trusted-communication solutions:

Voice API + Branded call

Help applications combine programmable voice interactions with a clearer and more trusted calling identity, subject to service availability and compatibility.

Voice API + Number Verification

Associate voice workflows with verified mobile-number signals to strengthen onboarding, authentication or sensitive customer journeys.

Voice API + fraud-prevention signals

Combine voice interactions with signals such as SIM Swap or identity-verification APIs to adapt security controls to the risk level of the transaction.

Voice API + SMS API

Use SMS as a separate communication channel for confirmations, links, alerts or post-call follow-up. SMS capabilities are provided through a dedicated API and are not part of Voice API itself.

How it works

Voice API connects Orange’s voice infrastructure with your application through secure APIs and callbacks.

  1. Create or receive a call: initiate an outbound call through the API or associate an allocated phone number with an inbound voice scenario.
  2. Control the voice experience: use Orange Markup Language, or OML, to play audio, generate speech, collect keypad or voice input, connect participants and dynamically update the call scenario.
  3. Receive events and media: your application receives call-status notifications, action results, transcription updates and available media files through configured callbacks.
  4. Activate your applications: send the resulting audio, transcription or call metadata to your AI models, CRM, AI agents, analytics services or business applications.

Voice API manages call control, voice routing, media and orchestration. Your application retains control of the business logic, data processing and end-user experience.

Benefits

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Operator-grade voice

Build on Orange’s telecommunications infrastructure to deliver reliable voice experiences designed for professional and business-critical applications.

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Simple API integration

Use documented REST APIs, OML scenarios and event callbacks to add programmable voice capabilities to your existing products.

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Inbound and outbound calls

Create outbound calls, configure inbound-call rules and connect calls to users, applications, bots or conferences.

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Flexible call orchestration

Play prompts, collect user input, connect participants and update voice scenarios while a call is in progress.

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Media and transcription

Retrieve available media files and enable live transcription when the required speech-recognition capabilities are activated.

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Built for scale

Start with one use case and progressively extend your implementation across teams, applications, customers and business processes.

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Secure by design

Use authenticated API access and controlled contracts while keeping your business logic and long-term data storage within your selected environment.

Ready for voice AI

Create a secure voice-data layer that can be connected to analytics, generative AI, conversational agents and automated workflows.

What does Voice API enable now and in the next 6 months*

Available now

• Programmable outbound calls
• Inbound-call rules for allocated numbers
• OML voice scenarios
• Audio prompts and speech input
• Call connection and conferencing
• Call and conference notifications
• Media-file management
• Live transcription with compatible services

Next step — industrialisation

• Simplified onboarding and developer experience
• Extended observability and operational tooling
• Improved documentation and integration examples
• Additional production-readiness validation
• Enhanced support for large-scale partner deployments

Future evolution

• Broader mobile-network integration
• Additional real-time voice and AI capabilities
• Expanded media-streaming options
• More advanced voice-agent orchestration
• Additional trust and fraud-prevention integrations

Roadmap information is indicative and may change according to technical validation, market priorities and country availability.

Use cases

Enrich your AI models

Provide authorised voice data to speech analytics, language models or specialised AI services to extract topics, intent, summaries and business signals.

Boost your CRM data

Turn calls into structured customer information such as conversation summaries, detected needs, follow-up actions and interaction history.

Enhance your AI Agents

Give AI agents access to telephony workflows so they can receive calls, gather information, route requests and trigger approved actions.

Upgrade your business applications

Add voice-driven workflows to customer-service platforms, recruitment tools, field-service software, booking systems and industry applications.

Build virtual receptionists

Welcome callers, identify the purpose of a call, collect information and route or process requests according to your business rules.

Automate call qualification

Use interactive voice scenarios to qualify leads, verify requests, capture structured input and route each caller to the right workflow.

Create voice-enabled support

Connect callers to automated assistance, human agents or specialist teams while preserving call events and context.

Develop post-call workflows

Retrieve the relevant media or transcription, process it in your application and automatically create tasks, notes, alerts or follow-up messages.

Test and explore our APIs with API Playground

Discover the API Playground: your interactive environment for testing and exploring Network APIs with ease! Prototype, validate, and experiment in real-time without impacting your live systems.

Get started today and bring your projects to life!

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Frequently Asked Questions

Voice API is Orange’s programmable-voice interface. It enables authorised applications to create and manage calls, define voice scenarios, connect participants, receive call events and access supported media or transcription capabilities.

It is designed for developers, software vendors, system integrators and enterprises building voice-enabled applications, AI services, customer-service tools or automated communication workflows.

You need an Orange Voice API contract, application credentials, an authorised contract identifier and the host and base-path information associated with your environment.

Authentication may use OAuth 2.0 bearer tokens or an API key, depending on the operation and the configured environment. The approved authentication method must be confirmed for each deployment.

Yes. Applications can initiate outbound calls through the call resource and associate them with an OML voice scenario.

Yes. An allocated phone number can be associated with an inbound-call rule that executes an OML scenario.

Orange Markup Language is a JSON-based language used to define voice interactions such as playing prompts, collecting input, connecting calls, joining conferences or ending a call.

Yes. A connected call can be updated with a new OML scenario, allowing the application to adapt the interaction dynamically.

Yes. Voice API provides resources for creating conferences, adding connected participants, retrieving conference information and stopping a conference.

Voice API provides file-management capabilities for supported media and recordings made available by the platform. Long-term storage should normally be managed by the customer application.

Live transcription can be started and monitored when compatible speech-recognition capabilities and connectors are enabled for the contract.

No. Voice API provides the voice, call-control, media and supported transcription layer. AI analysis, summarisation and business actions are implemented by the customer or through separate AI services.

No. SMS is provided through a separate Orange SMS API. Voice API and SMS API can be combined within the same customer journey.

No. Voice API controls calls routed through a Voice API-managed number, scenario or conference. It does not currently document transparent recording of an ordinary mobile call made directly between two devices.

Yes. Depending on availability and eligibility, Voice API may be combined with identity, fraud-prevention, number-verification, branded-calling or messaging capabilities.

Temporary media may be made available through Voice API according to contract limits and retention settings. Customers should define their own compliant long-term storage and deletion policies.

The targeted launch window is September 2026, subject to final technical, operational and commercial validation.

Contact the Orange sales team or use the contact form available on the Orange Developer portal.
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SIM swap

Perform real-time checks on the activation date of a SIM card on the mobile network.

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Number verification

Check if the provided mobile phone number is the one actually used in the device.

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Branded calling

Replace suspicious, anonymous strings of digits with an operator-certified business identity.

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