ictfax - ICTFAX is web based and open source Fax software, It is multi users and suitable to offer online Fax services, including Email to Fax, Fax to Email and Web to Fax. ICTFAX application support FoIP, T38 and G.711 pass through faxing also PSTN fax.
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs
HylaFAX+ - HylaFAX+ is an enterprise-class open-source system for sending and receiving facsimiles as well as...
Servetel - Communication management solution
FaxTalk FaxCenter Pro - Easy to use Windows fax software, broadcast fax, network fax server, answering machine software for home and small business.
LeadMaster - The LeadMaster LeadMasterCRM All-in-One solution includes: marketing automation, lead management, email marketing, website integration & much more.