AT&T Door Phone Controller operation manual Overview, DIP Switch Selections

You may also use the AT&T Door Phone Controller with a dedicated phone.

This section provides installation and operation information for applications such as residences or small businesses which do not have a telephone system.

When your AT&T Door Phone Controller is installed with standard telephone equipment (no PBX), the unit may operate in Shared Line Mode which permits a single telephone set to be shared between the AT&T Door Phone Controller and an outside line (to a Central Office). Thus, the standard telephone equipment can be used for normal call operations as well as servicing the door.

Complete information about the DIP switch settings can be found in Appendix A.

To customize the AT&T Door Phone Controller to your specific installation and option requirements, you must properly set the 8 position DIP switch located on the AT&T Door Phone Controller front panel (see Figure 1-1).

CAUTION: Do not connect to the modular jacks on the AT&T Door Phone Controller until after the DIP switches have been properly set.

When using the Door Phone Controller with a small business or residential telephone equipment (no PBX installed), the DIP switches must be set as shown in Figure 3-1(all OFF).