Zoho Meeting - Free video conferencing, online meeting, desktop sharing solution from Zoho.
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
Airtime - Hang out with group video, share music & videos
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
Voxox CloudPhone - Get a local or toll-free business number that automatically answers, routes and transfers calls, plus other professional business phone services.
Plivo - Plivo simplifies your customer engagement.