Setting blind dialing on the DM300C, DM400C and DM475

Learn how to set the blind dialing on the DM300C, DM400C and DM475.
Products affected: DM300C™, DM400C™ and DM475™
Follow these steps to set blind dialing:
  1. Press Menu
  2. Press Page Down
  3. Select Data Center Options
  4. Select Phone Settings
  5. Press Page Down
  6. If Blind Dialing displays OFF, select Blind Dialing to change it to Auto.
    • If Blind Dialing is already set to Auto, go to Step 8.
  7. Press Enter
  8. Press Home to return to the Main screen.
Note: This setting only affects an analog connection.

UPDATED: 14 August 2021

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