Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs
ClearFlask - Open-source Product Feedback Tool with a Public Roadmap and Announcements.
LeadMaster - The LeadMaster LeadMasterCRM All-in-One solution includes: marketing automation, lead management, email marketing, website integration & much more.
Fider - Fider is an open source, cross platform and free to use customer feedback platform for companies...
Servetel - Communication management solution
Nolt - A fast & beautiful way to collect user feedback