Telesign

Overview

Telesign is a digital identity and communications company and part of Proximus Global, alongside BICS and Route Mobile. Most of its products target account security: phone number verification, one-time passcodes, fraud scoring and account takeover protection. It also sells APIs for customer messaging and calls.

Key features

• Messaging API for SMS, MMS, RCS, WhatsApp, Viber and email through one interface
• RCS rich cards with link and call buttons and suggested replies
• Inbound SMS (mobile originated messages) with keyword actions and unsubscribe handling
• Voice API for one-way and two-way calls, plus number masking for private calls
• Verify API for OTP over SMS, voice, WhatsApp, Viber and RCS, with fallback between channels
• Phone ID checks on whether a number is active, reachable or roaming

Pricing

Pay as you go, priced by destination, with no contracts or monthly fees. A free trial account needs no credit card and comes with test credits for SMS, SMS Verify, Phone ID and other core products. Volume and committed-use pricing is available from sales.

How it compares to Linq

Telesign has no iMessage, which is Linq's main channel. Both offer SMS and RCS. Telesign also covers MMS, WhatsApp, Viber and email in one Messaging API, while Linq's WhatsApp is a separate beta API. Telesign charges per message by destination; Linq charges a flat monthly fee from $260 for Pro.

Best for

Teams that need phone verification, OTP delivery and fraud checks alongside transactional messaging.

Sources

• telesign.com
• telesign.com/pricing/sms-and-voice
• developer.telesign.com/enterprise
• developer.telesign.com/enterprise/docs/messaging-overview
• developer.telesign.com/enterprise/docs/inbound-sms-overview
• proximusglobal.com