1-5Making connections1 SETTING UPRinger volume switchAdjust the volume of the ringer. Use a pen orother pointed object to adjust the switch toHIGH, LOW or OFF.3 Connect an extension phone oranswering machine* to the t jack.Note• Due to the range of specifications, Canon cannot guarantee that all answering machines* will becompatible with your fax.• If you have connected an external device to your fax, be sure to select the correct receive mode (seeChapter 6).• To connect an extension phone as well as an answering machine, connect the extension phone to theanswering machine, and then connect the answering machine* to your fax.• If the extension phone does not have its own power supply, any redial data in the extension phonememory may be lost after an extended fax transmission.Users in the U.K. only:When you connect a telephone, be sure to connectthe B.T. Adaptor. Contact your local authorisedCanon dealer or the Canon help line.B.T. adaptor* An answering machine can be connected to the FAX-B120/B115 only.