Open source Fax server software for inbound / outbound internet Faxing
ICTCore: Unified Communications Framework for web developers
Web based system for Computer Assisted Telephone Interviewing (CATI)
Software per Call Center
The most affordable CRM system according to Capterra
Unified Communications Server
Accent interfaces and controls systems through goals and policies
Free billing to Asterisk
CMS API Server with web site
A suite of open-source tools and frameworks for creating SIP apps
This Webmin module aids in configuring the Dahdi interface to Asterisk