User Manual

Spectralink 7722, 7742 User Guide
14226906 Version 2.0
July, 2015 68
Power failure
In the event of a power failure or flat battery, you cannot use the handset to make or receive calls.
Battery Precautions
1 Periodically clean the charge contacts on both the charger and handset.
2 Exercise care in handling batteries in order not to short the batteries with conducting
materials such as rings, bracelets, and keys. The batteries or conducting material may
overheat and cause burns or fire.
3 Do not open or mutilate the batteries, released electrolyte is corrosive and may cause
damage to the eyes or skin. The electrolyte may be toxic of swallowed.
4 During charging batteries heat up. This is normal and not dangerous.
5 Lithium cell installation Caution - Danger of Explosion if Battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the manufacturer. Dispose
of used batteries according to the manufacturer’s instructions.
Notices
Before installing this equipment, users should ensure that it is permissible to be connected to the
facilities of the local telecommunications company. The equipment must also be installed using an
acceptable method of connection. The customer should be aware that compliance with the above
conditions may not prevent degradation of service in some situations.
Repairs to certified equipment should be coordinated by a representative designated by the
supplier. Any repairs or alterations made by the user to this equipment, or equipment
malfunctions, may give the telecommunications company cause to request the user to disconnect
the equipment.
Users should ensure for their own protection that the electrical ground connections of the power
utility, telephone lines and internal metallic water pipe system, if present, are connected together.
This precaution may be particularly important in rural areas.
EMC:CAUTIONS
Users should not attempt to make such connections themselves, but should contact the
appropriate electric inspection authority, or electrician, as appropriate.
If your telephone equipment causes harm to the telephone network, the telephone company may
ask you to disconnect the system from the line until the problem has been corrected or they may
discontinue your service temporarily. If possible, they will notify you in advance, But if advance
notice is not practical, you should be notified as soon as possible. You will be informed of your
right to file a complaint with the FCC.