Vicidial

Orbtalk have a range of SIP trunk products that work with Vicidial

The Vicidial Call Center Suite is a set of programs that are designed to interact with the Asterisk Open-Source PBX Phone system to act as a complete inbound/outbound call center suite.

VICIDIAL can function as an ACD for inbound calls or for Closer calls coming from VICIDIAL outbound fronters and even allows for remote agents logging in from remote locations as well as remote agents that may only have a phone.