Rocom Doortello Business FW T2.05W2.04 Guide de l'utilisateur Page 45

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User guideDoortello BusinessIssue 1.02
Page 45
The loudspeaker has a „hopping“ volume
1. The volume of the loudspeaker is automatically regulated with the line current.
If the loudspeaker volume is regulated too high, the telephone line might not have
enough power to supply the device at high volume. To avoid this reduce the
volume or try to power the device with an external power supply.
Technical support
Use the telephone number or e-Mail address on the last page of this manual for
more information.
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