User's Manual

SDP660 – USER MANUAL TNM-U-E-0114
Jun 15 (Iss. 1.4) Page 54 SPECIAL FUNCTIONS
The Lone Worker countdown is reset after any user activity with the radio, i.e. either PTT or “Lone
Worker” buttons are pressed.
8.14 DMR ALL CALL DIAL STRING
This function is used as a short sequence of key presses for “All Call” dial string (******#). In order
to initiate All Call, the user should press PTT within 5 seconds after “DMR All Call” button is
pressed.