using the handset for connection, and take these results as the basis for setting the
handsfree mode.
Echo comp. level is used to compensate the signal level that is reflected from the
connecting line and the opposite subscriber.
13. Select one of the following:
• Move setting to the left: if no echo or only a faint echo can be heard
• Move setting to the right: if a loud echo can be heard
14. Select Echo comp. time.
This menu item is used to compensate the effective time of the echo on the line.
15. Select one of the following:
• Move setting to the left: if only a short time delay is apparent between the
actual speech and the resulting echo
• Move setting to the right: if a long time delay is apparent between the actual
speech and the resulting echo
16. Select Attenuation level.
Handsfree operation works in accordance with the principle of the ”attenuation
scales". This means that one signal direction only (e.g. outgoing) can be active
(switched through) at any one time. During this period, the opposite side (e.g.
incoming) is ”attenuated" with a configurable value. This menu item is used to set
the attenuation level of the handsfree electronics in the telephone.
17. Select one of the following:
• Move setting to the left: increased two-way communication, but also more
echo for the other party to the call
• Move setting to the right: reduced two-way communication, but also less
echo for the other party to the call
Better duplex communication will mean more echo for the opposite subscriber. The
echo behavior can only be heard and thus evaluated by the other party of the call.
Private User Mobility *
The Private User Mobility feature allows you to log on to any telephone inside the telephone
system and have access to your personal settings (call list, redial, call diversion, and callbacks).
Callers will reach you on this telephone when they dial your call number. Charging units
incurred are allocated to your call number.
To use the PUM function, it must be enabled in the telephone system. Furthermore two function
keys must have the functions Log on and Log off assigned to them (look at the UsersGuide).
Telephone installation
38 1408/1416 Telephones IAM Guide January 2010
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