ZTE D90 Cell Phone User Manual


 
15
Efficient Use
For optimum performance with minimum power consumption, do NOT cover the antenna
area (below the mouthpiece of your phone) with your hand. Covering the antenna affects
the call quality, may cause the handset to operate at higher power levels than needed, and
may shorten talk and standby times.
Radio Frequency (RF) Energy
Your handset is a low-power radio transmitter and receiver. When it is turned on, it
intermittently receives and transmits Radio Frequency (RF) energy in radio waves to handle
and control the power level at which the handset transmits.
Emergency Services
To make an emergency call in any country:
1. Ensure your handset is ON and in service.
2. Press the End key as many times as needed to clear the display and ready the device
for calls.
3. Enter a local emergency number.
4. Press the Send key to dial the number. Follow instructions received and do NOT end
the call until told to do so.
When the dial lock function is on, press the Right soft key and then enter a local emergency
number. Press the Send key or OK key to dial the number.
Note: Tell the operator which service you require: Police, Ambulance, Fire truck, Coastguard
or Mountain Rescue Service. Give your position, and if possible, remain stationary and
maintain contact. Due to the nature of the cellular system, the connection of emergency
calls cannot be guaranteed. You should never rely on any wireless device for essential
communication like medical emergencies.