AudioCodes 400HD Series - Audiocodes HTTPS Redirect Server; Figure A-7: HTTPS Redirect Server Directing Phones to Provisioning Server

Administrator's Manual B. Alternative Automatic Provisioning Methods
Version 3.4.4 207 400HD IP Phones Series - Teams Compatible
B.2 AudioCodes' HTTPS Redirect Server
AudioCodes' HTTPS redirect server can be used to direct phones to the provisioning server's
URL, for downloading configuration and firmware files.
After the phone is powered up and network connectivity is established, the phone
automatically requests provisioning information. If it doesn't get it according to the regular
provisioning methods, it sends an HTTPS request to AudioCodes' HTTPS redirect server.
The server responds to the phone with an HTTPS Redirect response containing the URL of
the provisioning server where the firmware and configuration files are located. When the
phone successfully connects to the provisioning server's URL, an Automatic Update
mechanism begins.
Note: Phones' MAC addresses and the provisioning server's URL are preconfigured on
the HTTPS redirect server. For more information, contact AudioCodes support.
AudioCodes' HTTPS redirect server's default URL is:
provisioning/redirect_server_url=https://redirect.audiocodes.com
This address can be reconfigured if required.
Figure A-7: HTTPS Redirect Server Directing Phones to Provisioning Server