REACH CUSTOMERS ANYWHERE

Connect with customers worldwide with our global voice services

With Sinch Global Voice Services, you get enterprise-grade voice that’s reliable, scalable, and secure, so your business can connect with people wherever they are.

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Join over 150,000 businesses, including 8 of the 10 largest tech companies in the world

THE SINCH DIFFERENCE

Dependable, local, and easy to integrate

Sinch Global Voice makes it simple to modernize legacy systems, cut down on vendors, and deliver calls anywhere in the world. With pay-as-you-go flexibility and 99.95% uptime, you can scale to meet your needs.

Crystal-clear global reach

Our enterprise-grade network has direct connections in over 60 countries and local number availability in over 70+ markets for consistent, high-quality calls.

Elastic, future-proof scale

Handle any call spikes instantly and integrate seamlessly with developer-friendly APIs or Elastic SIP Trunking—no new hardware or carrier contracts needed.

Reliable security

Protect every conversation with encryption, fraud detection, number masking, and full compliance with GDPR, STIR/SHAKEN, and ISO 27001.
Image for Crystal-clear calls around the world with an enterprise-grade network 

RELIABILITY & REACH

Crystal-clear calls around the world with an enterprise-grade network 

Sinch’s independent enterprise-grade U.S. network, direct connections in 60+ countries, and local numbers in 70+ countries mean every customer hears you clearly—supported by a 99.95% uptime SLA.

  • Over 300 billion voice minutes carried annually

  • 95%+ U.S. population coverage

  • Local, mobile, and toll-free numbers available globally

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SCALABILITY & INTEGRATION

Scale on demand and integrate with developer-friendly APIs

Whether you’re building new apps or upgrading PBXs, Sinch’s Programmable Voice APIs and Elastic SIP Trunking make it easy to add capacity, features, and global reach without the hassle.

  • Elastic capacity for any call volume

  • APIs, WebRTC, PSTN, and SIP support

  • Consolidate multiple carriers into one platform

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SECURITY & COMPLIANCE

Your calls, protected from start to finish

Safeguard every call with end-to-end encryption, fraud controls, and compliance with GDPR, STIR/SHAKEN, Kari’s Law, and RAY BAUM’S Act—monitored 24/7 by our Security Operations Center.

  • ISO 27001 certified platform

  • Number masking and IP ACLs

  • Real-time fraud detection

WHERE IT WORKS

Global voice services for every customer interaction

Customer support & contact centers

IVR, smart routing, and number keep global support smooth and scalable.

Notifications & alerts

Automated voice reminders for appointments, fraud, or service updates reach customers instantly, anywhere.

In-app communications

Embed secure voice in ride-sharing, telemedicine, or support apps so users stay connected in your platform.

Sales & marketing

Run automated outbound campaigns for global customer engagement.

Secure communications

Keep personal numbers private while connecting users through anonymous calling.

EASY TO USE TOOLS

A complete platform for global voice

Programmable Voice API

Design custom call flows for PSTN, SIP, and in-app calling with full developer control.

Elastic SIP Trunking

Add cost-effective, scalable PSTN connectivity to existing phone systems in minutes.

Global numbers

Get local, mobile, and toll-free numbers in 70+ countries from a single dashboard.

In-app voice & video

SDKs let you embed real-time voice or video inside any web or mobile app.

Advanced security

Encryption, fraud detection, and number masking keep every conversation secure.

Pay-as-you-go pricing

Only pay for the minutes you use, with transparent rates by call type and destination.

Volume discounts

High-traffic customers get lower rates and optional add-ons like recording or transcription.

All-in-one platform

Combine voice with Sinch messaging, email, and verification to reduce vendor complexity.

Frequently asked questions about global voice services

Sinch provides local number availability in over 70 countries and operates an enterprise-grade network with multiple global points of presence.

Pricing is pay-as-you-go, with per-minute rates based on call type and destination. Volume discounts and additional features are also available.

Sinch offers Elastic SIP Trunking and Programmable Voice APIs to upgrade legacy PBXs without expensive hardware changes.

Sinch combines an enterprise-grade U.S. network, over 300 billion minutes of annual traffic, and an all-in-one communications cloud to simplify vendor management.

Sinch powers over 160 million phone numbers and provides 24/7 monitoring and enterprise-grade support on a global scale.