Dell 968 All In One Photo Printer - Manual (Page 61)

Fax Blocking Menu
You can access the Fax Blocking menu by selecting Fax Blocking from the Fax Setup menu.
When fax blocking is on, calls received from fax machines that have a caller ID that matches one
specified on the block list or have blocked their caller ID are disconnected.
* Factory default settings
24,000 bps
21,600 bps
19,200 bps
16,800 bps
14,400 bps
12,000 bps
9,600 bps
7,200 bps
4,800 bps
2,400 bps
Auto Fax
Conversion
On*—the fax is automatically converted to be compatible with the receiving fax
machine regardless of the send settings.
Off—an unsupported fax error is given if there is a mismatch between send settings
and those on the receiving fax machine.
Error
Correction
Specify whether or not the printer should attempt to automatically correct data errors
in faxes.
On*
Off
Original Size Specify the original size of your faxes.
8.5x11”*
A4
Menu item Action
Block List Turn the fax blocking feature on or off.
Off*
On
Block No-ID Specify whether or not the printer accepts faxes from unknown senders.