SINCH NAMED A CPAAS LEADER IN IDC MARKETSCAPE LEARN MORE Close notification CTA Talk to an expert Menu VOICE CALLING Make personal connections with voice calling Reach out globally and enhance user experience with voice conversations in your customers' own language. Talk to an expert Try for free Create new engagement opportunities with voice calling Reinvent customer support Automate switchboards and customer call centers with programmable voice solutions to boost efficiency and reduce response time. Reduce revenue leakage Anonymize phone numbers between sellers, buyers, drivers, or service providers to protect your business and individuals. Secure sign-up and login Verify users via a simple phone call with a customizable message to their mobile or landline number to keep platform access secure. Build conversations where they matter Implement voice calling, sit back, and enjoy higher engagement, efficiency, and flexibility - and reduced costs! Keep it simple and scale faster with a complete solution powered by a global carrier network for high-quality voice calling and guaranteed call delivery. Try for free We tested the market thoroughly and we chose Sinch because of their high-quality product, ability to scale, and excellent level of customer service. From purchase to implementation to performance, we found the right partner in Sinch. Eric Setton Co-founder & CTO, Tango Top-notch quality and cross-platform support Our programmable Voice API reaches customers on any platform or channel! Integrate PSTN, SIP, and VoIP calling to manage calls on apps, web browsers, mobile phones, or landlines. Enjoy a high-quality voice experience, optimized delivery routes, and carrier super network - all in one place. Talk to an expert Build the call experience you need Not a developer? No problem! Use our web portal to make your first call in just a few simple steps - no coding required. Get started in a snap with our user-friendly, scalable Voice API: Create an account - no credit card needed Add your first app (app key and secret) Trigger a text-to-speech voice callout Wait for the customer to answer the call Done! Try for free See API documentation Voice Calling { "method": "ttsCallout", "ttsCallout": { "cli": "+14045001000", "destination": { "type": "number", "endpoint": "+14045005000" }, "locale": "en-US", "text": "Hello, this is a call from Sinch." } } Build a custom voice flow for your business with our Voice API Numbers Get your hands on local or national mobile and toll-free numbers for calling in 80+ countries - no need to deal with local number polls. Call recording Get smart and step up customer communications - record all calls with a phone call app - inbound and outbound! Recorded prompts Upgrade the customer experience with pre-recorded phrases in customized online phone conversations. Interactive Voice Response (IVR) menus Improve call center performance and enhance the customer experience with programmable IVR systems. Answering machine detection Filter out answering machines and let contact center agents focus on live calls only. Voice-based IVR Let callers interact with the IVR and respond to prompts verbally - our new voice IVR has speech recognition! SIP integration Enjoy maximum flexibility and make sure your voice calls always take the shortest and quickest route with our SIP platform. Conference calling Gather up to 100 people in one online phone call, forget expensive travel costs, and connect with anyone anywhere in the world. Text-to-speech Reach more people with minimal effort! Our text-to-speech feature turns text into audio and supports multiple languages. Pay as you go Enjoy reduced costs compared to in-person meetings without any upfront payments nor hidden charges - pay for what you use, when you use it. Number masking Protect your business and customers by keeping personal numbers safe with anonymized voice calls. Learn more Local presence Boost brand recognition and build trust by using local 10DLC numbers for more personal two-way conversations. STIR/SHAKEN Help customers feel confident picking up phone calls with a trusted caller ID. Learn more Got questions? We've got answers! What's the difference between phone calling and in-app voice calling? How do I get started with Sinch phone calling? How do I rent numbers? Can I integrate Sinch Voice Calling via SDK? Can I voice-enable my local 10DLC number? Deeper insights into voice calling Apr 06, 2021 5 min read 10DLC: The new messaging revolution in the U.S. Read article Jul 20, 2021 3 min read It’s time to get certified and fight against illegal robocalls Read article Sep 10, 2020 3 min read Enhance customer experiences with Voice IVR Read article View all insights Our pricing page is on the way! In the meantime, get in touch to discuss pricing Get in touch Related products and features In-App Video Calling Build a seamless, customizable in-app video experience into your mobile and web app. Learn more In-App Voice Calling Use our in-app voice calling SDK to build trust and deeper relationships with your customers. Learn more Number Masking Masking numbers to anonymize voice calls can protect you and your customers while keeping personal numbers safe. Learn more Phone Call Verification Global call verification for mobile and landline numbers - Verify any user, anywhere! Learn more STIR/SHAKEN Fight back against robocalls, increase call answer rates, and build consumers' trust. Learn more What are you waiting for? 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