Toshiba GD-1200 Operator's Manual page 87

Setting up relay mailbox
How to create a relay mailbox on sender's side is explained here.
1
Press the [FAX] button on the control panel.
2
Press the [ADVANCED] button to enter the advanced menu, and then
press the [ITU MAILBOX] button.
3
Press the [RELAY] button, and then press the [BOX SETUP] button.
4
Press the [ENTER] button.
5
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