COMfortel M-720 - Advanced Information - V01 08/2021
3
Safety precautions
Read the safety precautions and the user guide before use.
The device cannot be used in the event of a power failure. In case of a power failure it
is also
not
possible to make
emergency calls
.
Emergency numbers
cannot
be dialled if the
keypad/display lock
is activated!
Use only
rechargeable batteries
that correspond to the
specification
. Never use a
conventional (non-rechargeable) battery or other battery types as this could result in
significant health risks and personal injury. Rechargeable batteries, which are notice
-
ably damaged, must be replaced.
The handset must not be operated if the battery cover is open.
Ensure that the batteries can not be short-circuited by objects in the battery compart
-
ment
Do not use the devices in environments with a potential explosion hazard
(e.g. paint shops).
The devices are not splashproof. For this reason do not install them in a damp environ
-
ment such as bathrooms or shower rooms.
Use only the power adapter indicated on the device.
Whilst charging, the power socket must be easily accessible.
Remove faulty devices from use or have them repaired by our Service team, as these
could interfere with other wireless services.
Do not use the device if the display is cracked or broken. Broken glass or plastic can
cause injury to hands and face. Send the device to our Service department to be
repaired.
Keep small cells and batteries, which can be swallowed, out of the reach of children.
Swallowing a battery can lead to burns, perforation of soft tissue and death. Severe
burns can occur within 2 hours of swallowing.
In the case of a swallowed cell or battery, seek medical care immediately.
Using your telephone may affect nearby medical equipment. Be aware of the tech
-
nical conditions in your particular environment, e.g. doctor's surgery. If you use a
medical device (e.g. a pacemaker), please contact the device manufacturer. They will
be able to advise you regarding the susceptibility of the device to external sources of
high frequency energy.
If a USB adapter cable is included, only use a USB power supply (5Volt) with USB-A
connection. The use of other voltage sources e.g. PC's with USB connection can cause
damage.
If a plug-in power supply is included, please use this power supply.