FileFlex - FileFlex: Access Share Stream developed and published by Qnext.
Twilio - Brings voice and messaging to your web and mobile applications.
Zoho Meeting - Free video conferencing, online meeting, desktop sharing solution from Zoho.
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
Voxox CloudPhone - Get a local or toll-free business number that automatically answers, routes and transfers calls, plus other professional business phone services.
CallHippo - Easy to use Phone System with World-Class Support