SERVICE MANUAL AS55X
55Xseries_manual_V3.22 (18-08-15)
www.kuhnt.com
91
Restart
Referring to the global restart settings in “GSM settings / General” (see 5.9.1), you
can here adjust every single channel.
At this point the restart function can be activated (“Yes“) or deactivated (“No“) for
this specific GSM channel. The parameters for the time interval and the operation
mode have to be set globally in the window “GSM settings“ / “General“ (see 5.9.1).
Default value:
not reported
Notice: A restart will never be triggered while a GSM connection or a call-
setup is in progress.
Notice: If the restart mode or the restart timer in the general window is
switched off, the AS55X does not restart the timer if you choose “yes”.
Least signal quality
To avoid poor audio quality or instable connections caused by a bad GSM signal level
a threshold for a minimum GSM signal quality can be set. No call setup into the GSM
network will be done via channels that do not reach this signal level.
The indicator of a registered GSM channel with too small signal quality is a slowly
flashing green LED.
Adjustment range is
00% … 99%
Default value:
not reported
Echo cancelling level
In a plain ISDN PBX and additional use of ISDN telephone units no echo occurs.
Because of the much higher speech comfort, echo cancelling should always be
switched off in this case (operation mode “Duplex“).
In connections with analogue telephones in your PBX often echo phenomenon occur,
which can be heard at the GSM phone. To avoid this, echo cancelling can be
configured.
There are three operation modes of the echo cancelling with different properties.
o
1st: Echo cancelling duplex (On low)
o
2nd: Echo cancelling simplex (On medium)
o
3rd: Echo cancelling s duplex (On high)
Echo cancelling duplex provides the smallest level of echo cancelling, but the best
speech comfort. Echo cancelling simplex + duplex comes with the highest level of
echo cancelling, but the worst speech comfort.
Default value:
Duplex
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