mFax VS Sfax

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

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

XM Fax - XM Fax is a file exchange solution that provides companies and users with secure transmission of their highly sensitive documents, including contracts, financial statements, transcripts, legal notices, etc.

myfax - Hosted digital fax solution

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.

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