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Home > Troubleshooting > Telephone and Fax Problems > Set Telephone Line Compatibility for Interference and VoIP Systems

Set Telephone Line Compatibility for Interference and VoIP Systems

Related Models:MFC‑L2710DW / MFC‑L2713DW / MFC‑L2715DW / MFC‑L2716DW / MFC‑L2730DW / MFC‑L2750DW / MFC‑L2751DW / MFC‑L2770DW / MFC‑L2771DW

Problems sending and receiving faxes due to possible interference on the telephone line may be solved by reducing the modem speed to minimise errors in fax transmission. If you are using a Voice over IP (VoIP) service, Brother recommends changing the compatibility to Basic (for VoIP).

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  • VoIP is a type of phone system that uses an Internet connection, rather than a traditional phone line.

  • Telephone providers frequently bundle VoIP together with Internet and cable services.

MFC-L2710DW/MFC-L2713DW/MFC-L2715DW/MFC-L2716DW

  1. Press Menu.
  2. Press image or image to display the [Initial Setup] option, and then press OK.
  3. Press image or image to display the [Compatibility] option, and then press OK.
  4. Press image or image to display the [High], [Normal], or [Basic(for VoIP)] option, and then press OK.
    Option
    Description
    High

    Select High to set the modem speed at 33600 bps.

    Normal

    Select Normal to set the modem speed at 14400 bps.

    Basic(for VoIP)

    Select Basic(for VoIP) to reduce the modem speed to 9600 bps and turn off Error Correction Mode (ECM). Unless interference is a recurring problem on your telephone line, you may prefer to use it only when needed.

    To improve compatibility with most VoIP services, Brother recommends changing the compatibility setting to Basic(for VoIP).

  5. Press Stop/Exit.

MFC-L2730DW/MFC-L2750DW/MFC-L2751DW/MFC-L2770DW/MFC-L2771DW

  1. Press image[Settings]>[All Settings]>[Initial Setup]>[Compatibility].
  2. Press [High], [Normal] or [Basic(for VoIP)].
    Option
    Description
    High

    Select High to set the modem speed at 33600 bps.

    Normal

    Select Normal to set the modem speed at 14400 bps.

    Basic(for VoIP)

    Select Basic(for VoIP) to reduce the modem speed to 9600 bps and turn off Error Correction Mode (ECM). Unless interference is a recurring problem on your telephone line, you may prefer to use it only when needed.

    To improve compatibility with most VoIP services, Brother recommends changing the compatibility setting to Basic(for VoIP).

  3. Press image.
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