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Hellofax - Easy. Reliable. Online faxing. Send & receive faxes from anywhere.
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
faxZero - Internet fax application.
Dialpad - Switch is a cloud-based phone system built for Google Apps users.
GotFreeFax - Send Free Fax Online to the U.S. and Canada.
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs