Connect a Door Phone to your  PABX, Commander or other Telephone System Our New DS4, DS5 and DS6 Model DOOR STATION Line Sharers are designed to connect to an Analogue Extension of your PABX or other Multi-Line Telephone System. You can then connect ONE or TWO of our range of Surface Mount or Flush Mount DOOR PHONES direct to the Line Sharer. Then when the Call Button of either Door Phone is activated, our DS4 or DS5 Line Sharer will generate an off hook condition to your PABX, which if it has a 'hotline facility' can be programmed to direct your Door Phone call to one or more internal telephone extensions or even external telephone or mobile numbers. Model DS6 can dial out to a pre-programmed number, if your PABX cannot (ie when the PABX does not have a 'hotline faclity'). Our Line Sharer will then terminate the call as soon as the called party hangs up. Touch Tone Lock Control is also provided, so that ONE (Model DS5) or TWO (Model DS6) separate Electric Locks can be controlled as required. Lock TWO (of Model DS6) can alternatively be used to START and STOP a  VIDEO DEVICE and/or TURN ON and TURN OFF a LIGHT at the initiation and completion of the Door Phone call.     Two Models to Choose from :                                                                         PABX Version                                                  PABX Version                                                                    Without Lock Control                     With Single Lock Control     A range of NEW High Performance DOOR PHONES have recently been released !     Door Station Line Sharer Model Selection Table