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menu parameter. The alias of the last ID called is 
displayed.

2. If required, press the Up/Down switch to display the 

desired radio. The alias of each number is 
displayed. 

3. Press the PTT switch or the F2 key 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” is displayed 6 seconds after the PTT switch 
is pressed. Auto exit then occurs.

5.17.8  MESSAGING

The messaging feature allows preprogrammed 

messages to be sent to a dispatcher on P25 channels. 
Up to 16 messages can be preprogrammed, and they 
are identified by an alias. If a Message option switch 
or menu parameter is programmed, messages are sent 
as follows:

1. Momentarily press the Message option switch or 

select that menu parameter. The alias of the last 
message sent is displayed.

2. If required, press the Up/Down switch to display the 

desired message. Then send the message by 
pressing the F2 key or momentarily pressing the 
PTT switch. One of the following events then 
occurs:

•

If five beeps sound and “ACK RECVD” is 
displayed, the message was received and automat-
ically acknowledged by the system.

•

If after five tries the message is not acknowledged, 
a tone sounds and “NO ACK” is displayed. 

5.17.9  STATUS MESSAGING

The status messaging feature allows you to manu-

ally or automatically send your current status to your 
dispatcher on P25 channels. Up to eight status condi-

tions can be preprogrammed, and they are identified 
by an alias. If the Status option switch or menu param-
eter is programmed, status conditions are sent as 
follows:

1. Momentarily press the Status option switch or select 

that menu parameter. The alias of the current status 
condition is displayed.

2. To change the current status, press the Up/Down 

switch until the desired status is displayed. Then to 
send the status, press the F2 (Select) switch or 
momentarily press the PTT switch. One of the 
following events then occurs:

•

If five beeps sound and “ACK RCVD” is 
displayed, the status was received and acknowl-
edged by the system.

•

If after five tries the message is not acknowledged, 
a tone sounds and “NO ACK” is displayed. 

5.17.10  P25 PACKET DATA

P25 packet data transmission capability is avail-

able with 4100 portables. A P25 Packet Data option 
button or menu parameter must be programmed to 
toggle the data mode on and off. 

The P25 Packet Data mode allows a subscriber 

unit to act as a packet data modem for a remote appli-
cation connected to the subscriber unit via an RS-232 
or SLIP (Serial Line Internet Protocol) connection. 
The SLIP connection requires an Ethernet port which 
is currently not available. The standard PCConfigure 
programming cable provides the RS-232 port (female 
DB9 connector) for connecting the external data 
equipment to a 4100 portable.

5.18.1  INTRODUCTION

Keypad programming can be enabled only if it 

has been enabled at the factory and a conventional 
mode option switch or menu parameter is programmed