If you are using Voice Over Internet Protocol (VoIP), (a technology that allows you to make telephone calls using a broadband Internet connection instead of a regular (or analog) phone line, review the information listed below. If you are not using VoIP continue to STEP 8.
Voice Over Internet Protocol (VoIP) is not a marketed feature of your Brother machine, however there is a compatibility setting available with this machine that may assist with sending and receiving faxes when using VoIP. Adjusting this setting lowers the baud rate (modem speed) and turns ECM (Error Correction Mode) Off. To adjust this setting follow the steps listed below:
Press Menu.
Press the Up or Down arrow key to display Fax, and then press OK.
Press the Up or Down arrow key to display Miscellaneous, and then press OK.
Press the Up or Down arrow key to display Compatibility, and then press OK.
Press the Up or Down arrow key to display Basic(for VoIP), and then press OK.
Press Stop/Exit.