Gigaset PRO Interop program

The Gigaset PRO Interop program is created to test the Gigaset PRO devices behind existing PBX systems and connected to Providers. Our Goal is to create a wide Interop behind the existing solutions. If you are missing local providers or PBX systems, you can contact the local technical Sales in your country.



When connecting the Gigaset T300/T500 or T440/640 PRO to the providers listed here, will offer you the Call features like:

  • Incoming Calls
  • Outgoing Calls
  • Call Transfer
  • Call Waiting
  • Call Forwarding
  • Anonymous Call
  • DTMF
  • A-Number forwarding (Optional)

In addition we perform also some tests with T.30/T.38 faxes with the T440/640 PRO.





T300/500 PRO



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