We are currently using Collab OneContact as a CCaas for our corporate and SMB clients on a license resale policy. This platform is a robust and scalable solution that answers the requisites of the modern contact center solutions without the need to have a PBX supporting its Call Flow and ACD. If you want to connect OneContact to a owned PBX solution, you can do it using its SIP Connector.
- Call Flow, ACD and IVR.
- Dynamic platform with the possibility to integrate with the client existing solution.
- Was built to stand alone, with no need for a supporting PBX, or a advanced reporting module.
- The need to have a Microsoft SQL Server 2012/2014 Standard in order to save the media interactions.
- The email module needs a little more work.
Read Rui Ferraz's full review
Collab OneContact is an all around platform that can be used in any situation. It can be used in situation where there isn't a PBX. I've seen some solutions where the platform is integrated, using SIP with a CUCM.