Other important safety information, Product performance – Samsung SGH-A717ZKAATT User Manual
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Cautions
Any changes or modifications to your phone not expressly approved in this 
document could void your warranty for this equipment, and void your authority to 
operate this equipment. Only use approved batteries, antennas and chargers. The 
use of any unauthorized accessories may be dangerous and void the phone warranty 
if said accessories cause damage or a defect to the phone.
Although your phone is quite sturdy, it is a complex piece of equipment and can be 
broken. Avoid dropping, hitting, bending or sitting on it.
Other Important Safety Information
•
Only qualified personnel should service the phone or install the phone in a vehicle.
Faulty installation or service may be dangerous and may invalidate any warranty 
applicable to the device.
•
Check regularly that all wireless phone equipment in your vehicle is mounted and
operating properly.
•
Do not store or carry flammable liquids, gases or explosive materials in the same
compartment as the phone, its parts or accessories.
•
For vehicles equipped with an air bag, remember that an air bag inflates with great
force. Do not place objects, including both installed or portable wireless equipment 
in the area over the air bag or in the air bag deployment area. If wireless 
equipment is improperly installed and the air bag inflates, serious injury could 
result.
•
Switch your phone off before boarding an aircraft. The use of wireless phone in
aircraft is illegal and may be dangerous to the aircraft's operation.
•
Failure to observe these instructions may lead to the suspension or denial of
telephone services to the offender, or legal action, or both.
Product Performance
Getting the Most Out of Your Signal Reception
The quality of each call you make or receive depends on the signal strength in your 
area. Your phone informs you of the current signal strength by displaying a number 
of bars next to the signal strength icon. The more bars displayed, the stronger the 
signal.
If you're inside a building, being near a window may give you better reception.