4.3.8.4 Back-light
Adjust level of back-light.
4.3.8.5 Ringer Volume
Set the level of the ringing sound.
4.3.8.6 P.A. Volume
Set the volume of a non priority PA call.
Note the volume of a priority PA call is fixed and cannot be changed.
4.3.8.7 Bell Signal
Choose the type of ringing signal sounding when and incoming call is active.
A sample is played when the type is altered.
4.3.8.8 Calls Out
This is the outgoing call list. If list entry is empty, time will show '- - -'
Picking from the list for making a call can be made by selecting an index and initiate a call.
4.3.8.9 Call In
Same as ‘Calls out’ but shows received call.
4.3.8.10 Auto Answer
Set the number of ringing signals received before the station automatically hooks off and enters hands free conversation.
Use the auto busy function to make it detect busy tone and hang on again.
This feature is used to simulate direct-in when the stations are used with a non Alphatron exchange, which is not capable
of communicating the direct-in to the stations.
4.3.8.11 Auto Busy
When this feature is enabled, the station will try to detect a busy tone on the line. If a busy tone is detected, then an
automatic hook on will be performed.
This feature is to be used with the auto answer when making a simulation of direct-in on a non Alphatron exchange,
which is not capable of communicating the direct-in to the stations.
4.3.8.12 Direct In
This set up parameter can be used to enable and disable the direct-in calls to a station.
4.3.8.13 Hands Free
Set the stability margin used when the station is in hands free.
The range is 10dB to 40dB.
With a station only using build in hands free microphone and build in hands free speaker, this parameter seldom need
adjustments. But if an external speaker is installed and used in hands free, this parameter must always be tuned.
A low value gives the maximum hands-free comfort, but also the highest risk of howling and feedback. Setting a high
value reduces the risk of feedback, but also reduces the comfort of using hands free, as the switching between speech
directions is heavier and more accentuated.
The right setting is the lowest value giving stability and no feedback under all circumstances.
Using an external speaker located well in distance of the hands-free microphone gives the optimal change of being able
to use a low stability margin, and thereby the highest quality of hands free conversations.
4.3.8.14 External Speaker
Enable the external speaker to be on by default. When starting conversations and when ringing.
58 | Operation of communication stations
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