The most affordable CRM system according to Capterra
Software per Call Center
Powerful Open Source Email Marketing app with analytics & segmentation
VICIdial Contact Center Suite
SaltOS, ERP, CRM, Business Management Suite, Josep Sanz Campderrós
IGSuite is a web-ajax-based Integrated Groupware Suite
Customer Relation Management Software with CTI integration support
A WebRTC-Enabled Chrome Extension for Seamless Call Center
software for email automation (newsletters, transaction mails, etc.)
Unified Communications Server
professional CRM and groupware service, ready for the cloud
Easily import email into TntConnect
A Better PBX For Your Business
Enterprise telephony recording and retrieval system
ERP, IP PBX, Accounting, CRM, Time tracking, and etc.
Simple, web-based address & phone book
Samples and wrappers around the Bria desktop API
Implement Screen Pop for Avaya PBX
vTiger Freeswitch PBX Integration
eAssistance Pro offers to add live chat plugin on website