CloudTalk - Work locally, grow globally
Twilio - Brings voice and messaging to your web and mobile applications.
Skype - Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.
Plivo - Plivo simplifies your customer engagement.
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs
SightCall - SightCall offers comprehensive real-time video APIs and Mobile SDKs that makes it simple to embed...