Axon Virtual IP PBX

Manages telephone calls within a business.
All routing of calls is digital over the computer network (or even a wireless network).
Unlimited number of extensions or external lines.
Supports all the standard PBX features like call transfer, hold, and record.
Includes a call queue sequencer with voice prompting and on-hold messages player (links to the IMS On-Hold Messages Player).
Uses the open SIP standard for signalling (RFC 3261) so it works with the broad range of SIP compatible phones and other devices.
Works with hardware type VoIP extensions which just plug into the LAN (e.g., Grandstream, Sipura etc.).
Works with computer based softphones (e.g., the Express Talk Softphone) where you make calls through your computer.
Works with USB phones plugged into your computer.
Links directly to VoIP services for your external lines (with cheaper calls). See Recommended VoIP Gateways for more information.
If no VoIP services are available can also link to ordinary external lines with FXO adapters.
Automatic "one-click" installer to set up the PBX in just minutes. Does not require detailed technical setup.
All configuration such as adding extensions is done using a web-like control panel through your internet browser so it can be done remotely.