Caller ID

Blocking voice calls

With Caller ID turned on, you can use the Anti Junk Fax function described in Blocking Reception of Unwanted Faxes in this chapter to prevent voice calls as well as fax receptions (the Anti Junk Fax function can normally only prevent faxes).

In this case, when a voice call or a fax transmission comes in from a number you have specified as a "Junk Number", your fax will break the connection as soon as it receives the calling phone number from the caller ID service (before the second ring).

To use this function, set Option Setting 15 to YES as described in Chapter 8, Option Settings, and then enter the number in the Anti Junk Number List as explained in Blocking Reception of Unwanted Faxes in this chapter.

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Sharp FO-175, FO-375 operation manual Blocking voice calls