Canon FAX-L160 Reference Manual page 155

SYSTEM SETTINGS
2. R-KEY SETTING
3. ACCESS TO DEST.
1. RESTRICT REDIAL
2. CONFIRM FAX NO.
4. UPDATE FIRMWARE
Registers the [R] key to access an outside line easily. (See "Dialing Through a Switchboard," on p. 3-17.)
– PSTN
– PBX
Sets restriction of the access to recipients.
Sets whether to disable the redial function of the [Redial/Pause] key.
– OFF
– ON
Sets whether to confirm the entered fax numbers each time you send a fax.
– OFF
– ON
This function is used only when the machine firmware needs to be updated.
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