Product manual
Programming
58 025-9346G
Guard Tone Duration 0 to 900 
milliseconds
Sets the duration of the high level Guard Tone. Type in a value and 
press ENTER.
Function tones sent When selected
Upon transmit
Sets whether function control tones are sent immediately when their 
key is pressed, or only after the transmit key is pressed. 
Function Tone 
Duration
0 to 250 
milliseconds
Sets the duration of the function tones. Type in a value and press 
ENTER.
Function Tone 
Removal
Yes, No Sets whether this deskset will mute its speaker while function tones 
are being sent by parallel desksets. If set to Yes, the receive audio 
will be slightly delayed. 
Immediate Talk Yes, No  Sets whether or not this deskset will buffer the operator’s voice audio 
while the function tones are being sent. If set to Yes, the transmit 
audio will be delayed slightly.
Additional Talk Delay 0, 100, 200, 300, 
400 milliseconds
In order to use the “Immediate Talk” feature properly, you may 
require additional audio delay to give the mobiles time to unsquelch. 
This additional delay time is set using this menu. The time is shown 
in milliseconds. If the menu item “Immediate Talk” is set to “No”, 
then this delay timer will not be used. Use the Spacebar to step 
through settings.
Four Wire Option Yes, No Sets whether or not this deskset is capable of full-duplex audio. It 
should always be set to “No” for 2-wire installations. In the Model 
284 this function appears in the Line parameters menu.
AGC Dynamic Range Lo ↔ Hi If leased lines are not used the dynamic range of the AGC circuit can 
be reduced to improve the level of background noise picked up by the 
deskset. Set low-loss lines to low and high-loss lines to high. In the 
Model 284 this function appears in the Line parameters menu.
Parallel Status Yes, No Sets whether or not this deskset updates its display when parallel 
desksets change the channel of the base station. If set to No, this 
deskset will continue to display the last channel selected from its own 
front panel. 
Supervisors Unit Yes, No When set to Yes, it makes this deskset a Supervisor unit, and it will 
be immune to the Privacy function when used by other desksets in 
the system. This function should not be confused with the Supervisor 
output, which is used to disconnect other remotes from the system.
Unselect Audio Off, Handset/Spkr, 
Line 4
You may listen to audio that is received on the lines that are not 
selected. Use this setting to control the selection. The audio may be 
routed out the Line 4 interface to a speaker that you connect, or heard 
on the handset and built in speaker. It may also be turned off 
completely. Use the Spacebar to step through the available settings.
Unselect Mute During 
Tx
Yes, No Enable this function to automatically mute the unselect audio while 
you are transmitting. If you do not have the unselect audio enabled, 
this function will not make a difference. Use the Spacebar to toggle 
this setting.
Off Hook Speaker 
Enable
Yes, No To keep the speaker enabled when the handset is off hook, set this 
function to “Yes”, otherwise leave it set to “No”. The receive audio 
will be present in the ear piece of the handset in both cases. Use the 
Spacebar to toggle this setting.
Parameter Range Description










