3CX Phone System for Windows is a software-based IP PBX that replaces a proprietary hardware PBX / PABX. 3CX’s IP PBX has been developed specifically for Microsoft Windows and is based on the SIP standard – making it easier to manage and allowing you to use any SIP phone (software or hardware). A software-based IP PBX / PABX offers numerous benefits:
I-voip Offers USB phones, handsets, headsets, microphones and VoIP service providers.
Our range includes Skype phones, IP Phones and USB Phones....
Based in Northern California, Voipia Networks is a provider of advanced Voice and Data services to individual and business customers around the world...