DialMyCalls - The easy to use mass and emergency notification platform. Send a phone call, text message or e-mail to your entire list of people in seconds.
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
Aprika Mercury SMS - See Mercury SMS - the 2 Way SMS Message App for Salesforce. Send and receive text messages to customers, team menbers or contact groups. Mercury includes Bulk Messaging and Scheduled SMS Delivery. Take control of Business Messaging - See How.
Dialpad - Switch is a cloud-based phone system built for Google Apps users.
DeskAlerts - Send alerts to any corporate device: PCs, phones, tablets, etc.
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs