Try this
Default to return to the standby You can reset your BT Freelance XB2500 back to the default settings. This will not delete your directory entries. Calls 1. Press the Left soft key to open the main menu. Vol. 2. Press Calls Vol. or Redial until the display shows reSeT and press OK. 3. Pin? is displayed, enter the PIN and press OK. Redial 4. cOnFirM? is displayed, press OK.
Or phone.Freephone 0800 218 2182* or visit www.bt.com/producthelp
Bob UK, March 2017