Eaton ExResistTel ZB, Руководство по эксплуатации

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Start-up
The ExResistTel telephone is ready for operation as soon as it has been
connected to the telephone network.
Maintenance
The ExResistTel telephone contains no parts that have to be
maintained.
Handset mode (except ZB version)
When you pick up the handset, you are in handset mode. Using the
keys and , you can adjust the handset volume for talking. If you
wish to durably change the handset volume, use the menu "Settings /
Handset volume". Using the key you can switch into open listening
mode. If you keep the key depressed and replace the handset, you
switch to hands-free talking mode.
Open Listening mode (except ZB version)
Using the keys and , you can adjust the loudspeaker volume for
talking. If you wish to change the loudspeaker volume durably, use the
menu "Settings / Loudspeaker". The handset volume cannot be
changed in open listening mode. Using the key , you can switch to
handset mode. If you keep the key depressed and replace the
handset, you switch to hands-free-talking mode.
Hands-free mode (except ZB version)
If you switch on the ExResistTel using the key you are in hands-
free-talking mode. Using the keys and you can adjust the
loudspeaker volume for talking. If you wish to durably change the
loudspeaker volume, use the menu "Settings / Loudspeaker". You end
the call using the key . If you pick up the handset, you switch to
handset mode.