The comfort telephone with the SOS function. Using the SOS button on the flashtel comfort II LB f, you can transmit an emergency call signal at the push of a button. You can store up to eight SOS numbers for this purpose. If one of the numbers is engaged or the answering machine is on, the system automatically tries the next number. This system also comes complete with a portable radio SOS transmitter. You can carry the small, lightweight pushbutton with a radio range of 30 m around with you indoors all the time; you can either wear it around your neck on a cord or on a Velcro strap around your wrist. This means that even when you are not right beside your telephone, you can trigger an SOS call via your flashtel comfort II LB f at the push of a button.