Motorola i877 사용자 설명서

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basics
optimize your handset antenna 
position
Your phone’s rating for HA compatibility is 
determined with the antenna extended if it 
has an extendable antenna. However, 
acceptable use might occur with the antenna 
retracted.  Test your handset in both antenna 
positions when the handset is in the optimum 
orientation.
choose your hearing aid setting
Find it: M > Settings > Phone Calls > Hearing Aid.
1
Set this option to Microphone. Microphone 
coupling is now optimized. 
or
2
Set this option to Telecoil. Handset meets 
US federal requirements for telecoil 
coupling sound.
or
3
Set this option to Off (factory default). This 
is the setting for non HA users.
features for the vision 
impaired
voice playback
The Voice Playback feature allows you to use a 
simulated voice to guide you through phone 
Approximate telecoil location is just 
above the battery.
Approximate telecoil location is within 
6-13 mm of this location.
Off - Shut off
M - Microphone
T - Telecoil