Audio calling
Reach out globally and connect personally with a voice call
Design the exact call flow you need with flexible and scalable solutions from Develotex.
An enhanced customer experience and more flexible business
  • Increase engagement Add voice-calling capabilities to your business for an enhanced and more personalized user experience.
  • Optimize your business Reduce costs and add flexibility by automating and moving your customer and employee communications to the cloud.
  • Scale in comfort Connect to our carrier networks around the world. It’s easy, affordable & helps you scale globally faster.
Get started
Build the exact call experience you need
                                            
curl --location --request POST 
    'https://calling.api.develotex.com/calling/v1/callouts' \
--header 'Content-Type: application/json' \
--header 'Authorization: Basic {token}' \
--data-raw '{
    "method": "ttsCallout",
    "ttsCallout": {
        "cli": "+AAAAAAAAAAA",
        "domain": "pstn",
        "destination": {
            "type": "number",
            "endpoint": "+BBBBBBBBBBB"
        },
        "locale" : "en-US",
        "prompts": "#tts[Hello, this is a test call. Bye!]"
    }
}'
Boost your business and build with confidence with our programmable Voice API
  • Create Account
  • Create Project
  • Integrate your code
  • Enjoy and connect people
Use cases
Reduce revenue leakage
Enable in-app voice calls between sellers, buyers, drivers, or service providers while anonymizing their phone numbers. With our Number Masking feature, you can safeguard their identities. And as a perk, keep conversations tied to your platform, so your users do not engage outside of it.
Increase efficiency & reduce costs
Accelerate digitalization by automating traditional switchboards and customer centers with programmable voice solutions. Handle more calls, reduce the time needed to attend to requests, and enhance customer experience by connecting them to the right agent, all with easy-to-implement and scalable Voice API.
Secure sign-up and login
Add another layer of access security to your application by adding Voice call Verification to your signup and sign-in process. Deliver One-Time Passcodes (OTP) via voice text-to-speech, making sure numbers can still be verified regardless of where your customers are in the world.
Pricing
Choose your country
100 minutes FREE
$ 0.0004/minute
Video pricing based on active connections to Develotex in the foreground and APNS/GCM in the background. Check out the details in our Developer documentation.
Sign up for a free trial
  • Create Account
  • Create Project
  • Integrate your code
  • Enjoy and connect people
Contact sales
Talk to us
  • Find the right solution for you
  • Explain options for pricing
  • Connect you with helpful resources
For information about how Develotex handles personal data, see our privacy statement at Private Privacy.
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More PRODUCTS
Get more
Cast an eye over our related products, built to make your engagements even better.
Video Calling
Put a face to a voice & help people make a real connection with our video calling SDK.
Verification
Give your customers a break from their keyboards turn the vibrancy up a notch by having them actually speak to you, or anyone on the app.