Your machine may not work with some VoIP systems. If you want to use your machine to send and receive faxes on a VoIP system, make sure one end of your telephone cord is connected to the socket labelled LINE on your machine. The other end of the telephone cord may be connected to a modem, phone adapter, splitter, or other such device.

If you have questions about how to connect your machine to the VoIP system, please contact your VoIP provider.

After you have connected your machine to the VoIP system, check for a dial tone. Lift the external telephone's handset and listen for a dial tone. If there is no dial tone, please contact your VoIP provider.

If you are having problems sending or receiving faxes over a VoIP system, we recommend changing the machine’s modem speed to the [Basic(for VoIP)] setting.

• VoIP (Voice over IP) is a type of phone system that uses an Internet connection, rather than a traditional phone line.
• Brother does not recommend the use of a VoIP line. VoIP limitations in general can cause some functions of the fax machine not to work correctly.