Maintenance; Technical Specifications - Aastra DT690 User Manual

DT690
Key click
Warning tone
25.3

Maintenance

Consider these suggestions and guidelines to keep your phone in good shape
and working properly.
Note: The phone does not contain user serviceable parts. If your phone
Intrinsic safety
Do not use the phone and charger in conditions where there is a danger of
electrically ignited explosions.
Battery disposall
Defective batteries must be returned to a collection point for chemical waste
disposal.
Treatment
Do not expose the phone and charger to direct sunlight for long periods. Keep
the phone and charger away from excessive heat and moisture.'
Cleaning
Clean your phone with a soft cloth moistened with water only. The use of soap
and other cleaning products can discolor and damage the phone. Clean the
battery contacts using ethanol or isopropyl alcohol.
25.4

Technical Specifications

DECT GAP/CAP
The Cordless phone has the unique advantages of DECT GAP/CAP (Digital
Enhanced Cordless Telecommunications Generic Access Profile/CTM Access
Profile). This means that no one can eavesdrop on your calls and that the
quality of speech is as good as that of conventional fixed telephones. DECT
GAP/CAP enables interoperability with other manufacturers' products.
Cordless phone
138
You hear this each time you press a key (when selected).
You pressed a key which has no function.
requires service, you should return it to the supplier or retailer from
whom it was bought.
1424-EN/LZT 103 090 Uen A1 2008-10-24