mFax VS Star2Star

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.

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.

myfax - Hosted digital fax solution

Sfax - Secure Internet Fax