Gigaset E500H User Manual page 11

ƒ If you give your phone to a third party, make sure you also give them
the user guide.
Remove faulty bases from use or have them repaired by our Service
team, as these could interfere with other wireless services.
Please note
u Not all of the functions described in this user guide are available in all
countries.
u The device cannot be used in the event of a power failure. It is also not
possible to transmit emergency calls.
Safety precautions
9