Health and safety information
144
• Do not paint the phone. Paint can clog the
device’s moving parts and prevent proper
operation.
• Do not put the phone in or on heating devices,
such as a microwave oven, a stove or a radiator.
The phone may explode when overheated.
• Use only the supplied or an approved
replacement antenna. Unauthorized antennas or
modified accessories may damage the phone and
violate regulations governing radio devices.
• If the phone, battery, charger or any accessory is
not working properly, take it to your nearest
qualified service facility. The personnel there will
assist you, and if necessary, arrange for service.
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Glossary
Air Time
- Actual time spent talking on the wireless
phone. Most carriers bill customers based on how
many minutes of airtime they use each month.
Antenna
- A device for transmitting or receiving
signals. The size and shape of antennas is
determined, in part, by the frequency of the signal
they receive. Wireless phones and the base station
must have antennas.
Base Station
- The fixed radio transmitter/receiver
that maintains communications with mobile radio
telephones within a given area. (Typically called a
cell or cell site)
CDMA
- (Code Division Multiple Access) A spread-
spectrum approach to digital transmission. With
CDMA, each conversion is digitized and then tagged
with a code. The mobile phone deciphers only a
particular code to pick the right conversation off the
air. The transmitted signal is just above noise level
across the available bandwidth.
Channel
- Communications signals transmit along
paths called channels.
Codec Coder/Decorder
- Compression &
decompression.
Deactivation
- The process of rendering a wireless
phone inactive.
DTMF
- (Dual-Tone Multi- Frequency ) You send
DTMF signals when you enter numbers by pressing
the digit keys.
