Be aware that increasing the gain automatically adds to the necessary hands-free stability margin, so choosing a high
gain adds to the feeling of the hands-free speech direction switching, whereas reducing gain increases the hands-free
comfort.
Adjusting the gain is assisted by a level meter displayed when the menu is chosen.
A good practice is to speak to the microphone, and increase the gain until the P (peaking) is seen, after which the gain is
reduced two steps.
4.3.8.26 Handset microphone gain
A menu used for adjusting the gain of the handset microphone.
Tip
• TIP!
• Lift the handset and wait 20 seconds for timeout, then enter the menu while having the handset in your hand.
4.3.8.27 Headset microphone gain
A menu used for adjusting the gain of the headset microphone.
Note Headsets are used in noisy areas, and when noise reaches 120 dB, this parameter need to be adjusted to
its minimum in order to keep the input stages operating in their linear range.
4.3.8.28 External microphone gain
This menu is used for adjusting the gain of the input amplifier when the local speaker is used as microphone.
4.3.8.29 Relay mode
This menu item is controlling the behavior of the relay:
Name Relay activated on
Ring Ringing
PA PA call received
Ring + PA Ringing or PA call received
Invert Active always
Inv. Ring Not activated when ringing
Inv. PA Not activated when PA call is received
Inv Ring + PA Not activated when ringing or PA call is received
Call Activated when the telephone is active in a call (Used for PA speaker mute)
4.3.8.30 Relay hold off
Enable this function if the relay shall have a hang over time keeping it activated between ringing signals.
4.3.8.31 Contrast
Adjusting the contrast of the display.
60 | Operation of communication stations
To Next Page
Loading...