When you are using Centrex type phone lines from your local phone company you need to program a Flash (or Recall) button onto your Partner telephone. (This is for all releases of Partner). To start programming:
Press the FEATURE button
Touch the button you want to use
Press FEATURE 03
Press FEATURE 00 to exit programming
To use simply press the button when you are currently active on the call and it will give you centrex dial tone.
This feature works well when you would like to transfer a call off site and you don’t want to use up 2 phone lines for the whole call.