TOP-NOTCH SECURITY

A more secure platform for voice

With Sinch Voice security, your calls are encrypted, compliance is built in, and fraud is proactively prevented, so you can reduce risk and build trust with every conversation.

Talk to an expert
Image for A more secure platform for voice
Join over 150,000 businesses, including 8 of the 10 largest tech companies in the world

Security and compliance at the core of every call

Sinch provides a secure, compliant voice platform built on geo-redundant infrastructure. Voice security features like end-to-end encryption and proactive fraud prevention come included, with no add-ons required.

Image for Protect customers & data

Protect customers & data

Every call and data stream is protected against unauthorized access with end-to-end TLS/SRTP encryption shields—no added fees, no extra effort.
Image for Stay globally compliant

Stay globally compliant

Easily meet ISO 27001, SOC 2, GDPR, CCPA, and STIR/SHAKEN requirements and make vendor reviews and audits simple.
Image for Build lasting user trust

Build lasting user trust

Look no further than our public Trust Center as proof of our commitment to privacy, helping you earn confidence from customers, regulators, and partners.
Image for Secure authentication

Secure authentication

API requests are verified with basic auth, signed requests, and JWT tokens for an extra layer of defense.
Image for 24/7 security operations

24/7 security operations

Our dedicated SOC teams watch over the network day and night to detect threats and stop them in their tracks.
Image for Owned and operated global network

Owned and operated global network

Sinch runs one of the largest independent voice networks, giving you consistent quality, security, and compliance.
Get inspired

Voice security FAQs

Sinch uses TLS to secure call signaling and SRTP to encrypt media for Voice API and SIP Trunking. In-app calling uses DTLS-SRTP for media encryption.

Yes. Sinch Voice is GDPR and CCPA compliant and ISO 27001 certified. The Trust Center gives you open access to compliance documents.

Sinch is fully compliant with STIR/SHAKEN in the US and Canada, verifying caller IDs. Elastic SIP Trunking can block unwanted calls, and Number Lookup flags suspicious numbers.

Sinch holds ISO 27001 and SOC 2 Type 1 & 2 certifications and meets regulations like GDPR, CCPA, DORA, Kari’s Law, and RAY BAUM’S Act.

Yes. Core protections like encryption, authentication, and fraud prevention come standard with no extra charges.

Sinch is hosted on geo-redundant AWS infrastructure, monitored by a 24/7 SOC. Data at rest is encrypted with AES-256 and data in transit with TLS 1.2+.

Talk to an expert about securing your voice communications

Discover how Sinch’s voice solutions can reduce risk and build trust at scale.