Chapter 8 PBX and TRANSFER 8 The machine is initially set to Normal, which lets the machine connect to a standard PSTN (Public Switched Telephone Network) line. However, many offices use a central telephone system or Private Branch Exchange (PBX). Your machine can be connected to most types of PBX. The machineâs recall feature supports timed break recall only (TBR). TBR will work with most PBX systems allowing you to gain access to an outside line, or transfer calls to another extension. The feature works when Tel/R is pressed. BT Call Sign (U.K. only) You can connect an external Telephone Answering Device (TAD) to the same line as your machine. When the TAD answers a call, your machine will âlistenâ for the CNG (fax calling) tones sent by a sending fax machine. If it hears them it will take over the call and receive the fax. If it does not hear them, it will let your TAD take a voice message and the display will show Telephone. 8 The BT Call Sign subscriber service is a way to have a separate number for your machine; it allows you to have at least two separate telephone numbers on one phone line. Each phone number has its own distinctive ringing pattern. You can set up your machine so that it only responds to the second number. This feature works with your external phone. a Press Menu, 2, 0, 2. The screen displays the current setting. b Press a or b to choose On or Off. Press OK. c Press Stop/Exit. 70 The external TAD must answer within four rings (we recommend you set it to two rings). This is because your machine cannot hear the CNG tones until the external TAD has picked up the call. The sending machine will send CNG tones for only eight to ten seconds longer. We do not recommend using the toll saver feature on your external TAD if it needs more than four rings to activate it. NOTE If you have problems receiving faxes, reduce the ring delay setting onyour external TAD to one or two rings. When you set the BT Call Sign feature to ON, the receive mode is set to Manual automatically. Manual mode will not respond to incoming telephone calls since the number you use for telephone calls will use the normal ring pattern. If you turn the feature off, your receive mode will remain on Manual. To enable the machine to work with BT Call Sign Connecting an external TAD (MFC-1900(E) and MFC-1910W(E) only) 8 8