LifeSize - LifeSize offers video conferencing solution that enable human interaction over any distance.
Dialpad - Switch is a cloud-based phone system built for Google Apps users.
eyeson - Video meeting from your browser with an extra level of security.
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
CallKite - Your website’s video call center in just one click.
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs