Digital multifunctional system BP-B540WR / BP-B550WD

You can connect an existing telephone to the machine.
The telephone can be used for voice calls and to start fax reception on the machine. Connect the external telephone as shown below. After connecting an external telephone, configure the "External Telephone Setting" in setting mode (administrator).
Insert the plug on one end of the telephone line cord into the external telephone connection jack of the machine as shown until it clicks, and insert the other plug into a wall telephone jack until it clicks.

Enable the "Tel/Fax Auto Change" function. This is useful as the telephone or fax operation is selected automatically according to the calling.

You cannot send a fax from your telephone.
You can connect a telephone with a modular cable plug to your machine. Also, use the two-wire cable for telephone connection. If another type of cable is used, the telephone may not operate normally.
If the plug on the telephone line cord does not fit into the jack on your external phone, contact your dealer or nearest SHARP Service Department.

Follow the steps below if you need to start fax reception after answering a call and speaking on the external telephone.
Dial [5], [*] and [*] buttons of the external telephone.
If you are using a pulse line, set the extension to send tone signals.

If "Settings (administrator)" → [System Settings] → [Image Send Settings] → [Fax Settings] → [Default Settings] → [External Telephone Setting] →Display Fax Screen when External Telephone is Off-hook] is enabled and the external phone is still lifted when fax transmission ends, an alarm signal will sound and a message will appear in the touch panel.