E F Johnson Company 2425M80 Benutzerhandbuch

Draft 02 - Sep 1 2015

5-26

The Call Alert™ feature allows pages to be sent and received on P25 conventional 
channels. The Call Alert Encode and Decode options must be enabled (by programming) 
to send or receive an alert. Operation is similar to SMARTNET/SmartZone and P25 
Trunking channels.

To answer a page:

1 When a page is received, five beeps sound and “PAGE RCVD” (Standard Control 

Head) and “Page Receive” (Lightning Control Head) is displayed. The ID of the radio 
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 5.13.7), press the Unit Call option switch 

(or select the option from the menu). The alias of the radio paging you is displayed. 
Press the PTT switch and respond. One of the following conditions then occur:

- If the radio 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 ANSWER” (Standard Control Head) or “No 
Answer” (Lightning Control Head) is displayed.

- If the radio being called is not on the air, a continuous tone is heard instead of ringing 

and “NO ACK” (Standard Control Head) or “No Acknowledge” (Lightning Control 
Head) 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 <F6> (Exit) key.

To initiate a page:

1 With a P25 conventional channel selected, momentarily press the Call Alert option 

switch. The alias of the last ID called is displayed. Or press and hold the switch to 
directly enter the ID of the radio you wish to page.

2 If required, rotate the Select switch to display the desired radio. 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 radio is on the air and 
received it. The page mode is automatically exited.

•

If the system received the page but the called radio is not on the air, a single beep 
sounds and “NO ACK” (Standard Control Head) or “No Acknowledge” (Lightning