TeleSign Alternatives

Brings voice and messaging to your web and mobile applications.

Open Source

Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.

VoIPstudio is an award-winning VoIP system that offers businesses of all sizes a scalable communication solution. It’s inexpensive, easy-to-use, offers a full suite of PBX features, and is fully integrated for CRM.

Try for free paid Free Trial $4.99 / Monthly (User)

Sinch is a powerful voice and messaging SDK that lets you bring your apps to life with VoIP and...

Nexmo is a simple two way SMS API with global reach and wholesale rates

Plivo simplifies your customer engagement.

Smooch connects your business software to all the world’s messaging channels for a more human customer experience.

Open Source

TalkJS is a messaging API enabling users to add buyer-seller chat to their online marketplace or platform.

Cloud Speech offers speech to text conversion powered by machine learning.

Voximplant is a software program that allows businesses to automate communications by setting up automatic communication systems in the cloud.

Upgrade your Asterisk platform with VoiceXML

World's Most Scalable Voice, Video & Chat SDK for Small, Medium & Enterprises

Open Source paid Free Trial

Next generation cloud communication platform that allows for the easy building of voice, video, and messaging applications.

LINK Mobility is Europe's leading provider within mobile communications, specialising in mobile SMS messaging, digital services and multi-channel conversational communication.