"Data Center Phone Is Busy" message on the DM300M, DM400M and DM475

Learn how to resolve a "Data Centre Phone Is Busy" message on the DM300M, DM400M, DM475 (G922).
Products affected: DM300M™, DM400M™, DM475M™ (G922)

Issue

When connected via telephone line, the franking machine displays the error message Data Centre Phone is Busy when attempting to add funds, perform a data capture upload, or a system update.

Important: Analogue connections are no longer available as of 1st January 2023. Please order a SmartLink Device to maintain your connections to the Pitney Bowes Data Centre.

This article is for franking machines connected via a telephone line only.  If your franking machine is not connected via phone (for instance, uses SmartLink™ or a LAN connection), please see "No Dial Tone" message on your franking machine.

Cause

This error is most often caused by the franking machine not being able to hear a dial tone on the phone line it is connecting through.

Resolution

Am I digitally connected?

If you have a telephone lead connected to the analogue connection port, change your connection method to a digital connection.
Analogue connection port

UPDATED: 18 January 2023