GFI FaxMaker VS XM Fax

mFax - mFax is a cloud-based fax solution for sending and receiving faxes from any device.

Hellofax - Easy. Reliable. Online faxing. Send & receive faxes from anywhere.

RingCentral Fax - RingCentral Fax is an online fax solution that enables companies to avoid the bulkiness of paperwork and maintenance costs of fax machines and charges of phone lines.

eFax - Over 11 million people use eFax every day for their fax communications.

OpenText RightFax Fax Server - Fax server software by OpenText provides a scalable solution that integrates with industry applications that power business processes.

Sfax - Secure Internet Fax