Discord - Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more.
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
Mumble - Mumble is an open source, low-latency, high quality voice chat software primarily intended for use...
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
Twitch - Twitch is one of the most prominent streaming services around, serving as a platform primarily for video game and pop culture streamers.
Plivo - Plivo simplifies your customer engagement.