E F Johnson Company 2425331 Benutzerhandbuch

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then transmitted back. To respond to the call, the radio 
must be programmed with the CALL option switch, 
and have a Unit Call programmed with the ID of the 
calling mobile. 

Place and receive a Unit Call as follows:

1. To transmit a unit call, press the CALL option 

switch. The alias (tag) of the last Unit Call is 
displayed.

2. If required, rotate the Select switch to display the 

desired call. The alias and ID of the unit calls that 
have been programmed are alternately displayed.

3. Press and then release the PTT switch. Ringing is 

then heard and “WAIT” displayed to indicate that 
the mobile is being rung. To disable this ringing but 
not the call, briefly press the PTT switch again. 
Ringing occurs for 20 seconds or until the call is 
answered, whichever occurs first.

4. When a unit ID call is received, two beeps sound (if 

tones are enabled), and “Call Rcvd” and the alias of 
the Unit ID are alternately flashed. 

5. To respond, select the Unit Call mode by pressing 

the CALL option key. The following operation then 
occurs:

•

If a unit call has been programmed with the ID of 
the calling mobile, it is automatically selected. A 
response can then be made without changing the 
selected channel.

•

If no Unit Call has been programmed with the ID 
of the calling mobile, a response cannot be made 
in this mode.

•

If the call timer times out (set by programming) or 
the channel is changed before a response is made, 
the unit call mode is exited. 

5.15.6  CALL ALERT

General

The Call Alert™ feature* allows pages to be sent 

and received on P25 conventional channels. Opera-

tion is similar to SMARTNET/SmartZone and P25 
Trunked channels.

Answering a Page

1. When a page is received, five beeps sound and 

“PAGE” is displayed. The ID of the mobile paging 
you is stored as the last ID received.

2. To clear or ignore the page, press any option switch. 

If the PTT switch is pressed, a group call is placed 
on the selected channel.

3. To answer the page as a unit call (see Section 

5.15.5), press the CALL (Private/Unit) option 
switch and the alias of the mobile paging you is 
displayed. Press the PTT switch and respond. One of 
the following conditions then occur:

•

If the mobile being called is on the air, ringing is 
heard until the called party answers or for 20 
seconds, whichever occurs first. If no answer 
occurs within 20 seconds, a continuous tone 
sounds and “NO ANS” is displayed.

•

If the mobile being called is not on the air, a 
continuous tone is heard instead of ringing and 
“NO ACK” is displayed.

4. When the call is finished or if it could not be 

completed for some reason, end it by pressing the 
Unit Call option switch or the F1 (Exit) key. 

Initiating a Page

1. With a P25 conventional channel selected, momen-

tarily press the ALERT (Call Alert) option switch. 
The alias of the last ID called is displayed.

2. If required, rotate the Select switch to display the 

desired mobile. The alias of each number is 
displayed. 

3. Press the PTT switch and one of the following 

occur:

•

If five beeps sound, the system received the page 
and the paged mobile is on the air and received it. 
The page mode is automatically exited.

* This feature requires 5300 operating (ARM) software 
1.22 or later and PCConfigure 1.20 or later.