Reset SL 78h

Switch off handset:

  • Press the keys 1, 4 and 7 and hold them
  • Switch on handset
  • Keep them pressed until you see the following display:

 

  • Enter 4 6 8 5 4 6 3 (HOTLINE)

 

  • All handset settings are reset to the default
  • Directory, calendar entries and all lists are empty