MM-012099-001, Rev. B
10.25.4Exiting Data Calls
Under normal conditions, the radio enters the scan lockout mode and returns to the control channel after completion of a data call (transmit or receive). If, during a data call, one of the following operations occurs, the data call is immediately terminated and the radio performs the desired function:
•If the PTT is activated.
•If an Emergency is declared by pressing the
•If a group or system is changed.
10.25.5Scan Lockout Mode
Following the transmission or reception of a data call, if scan is enabled, scanning will stop temporarily. There are two independent
•Press the 
button.
•Press the PTT.
•Change a group or system.
•Enter Telephone Interconnect mode.
•Enter Individual call mode.
•Receive a new emergency assignment.
•Declare or clear an emergency.
•Receive an individual or phone call.
•Receive an Agency, Fleet, or System All Call.
•Press 
(P5450 model) or 
(P5470 model) to toggle Scan ON or OFF.
10.25.6Data Lockout Mode
During the voice call scan hang time
10.26GROUP CALLS IN P25 MODE
10.26.1Transmitting a Group Call
1.Select the desired P25 system. (P25 icon will appear in display.)
2.Select the Talk Group/Conventional Channel. (Selected simultaneously using either the Voice Group Selection control knob or the group key.)
3.Press and hold the PTT.
4.When a grant tone is received (if enabled through programming) speak into the microphone.
5.Release PTT and wait for response.
111