https://www.thinkvoip.eu/Fax-Servers.php
Secure and efficient fax server deployments by ThinkVOIP. Send and receive faxes via email, manage documents centrally, and reduce hardware dependency.
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https://www.ictfax.org/technologies/
ICTFax is based on FOIP (Fax over IP) which is a process of sending and receiving fax through Internet protocol. Foip works through T.38 and requires a T38
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https://faxcore.com/
FaxCore offers enterprise fax solutions that are fast, secure, and reliable. Explore your software options for on-premise, hybrid, and cloud-based fax servers!
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