User's Manual

FCC Documentation- MM-5500U CDMA 1x/EVDO Modem
13/22
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4.2.2 Connect ear-piece to the ear-jack connector if you want to use as a phone.
Microphone and earphone signals for Voice Call are provided to interface with headset directly.
1. Connect the ear-piece plug firmly the ear-jack port hole.
2. Ware the Ear-piece to the left or right ear and adjust the ear-piece to fit to your ear firmly.
- Press for more than a second during buzzer ringing for receiving voice call
- Press for more than a second when redial, this time you heard dialing sound
When adjusting the volume on the unit, please refer to the “MM-5500U Software manual” for detail
information.
4.2.3 LED display
Table 4.2.1 LED function descriptions
LED Color
Function
RED GREEN YELLOW
POWER ON ON OFF OFF
ACQUISITION- Fail FLASH OFF OFF
ACQUISITION- OK
(IDLE)
OFF ON OFF
VOICE CALL ON ON OFF
DATA CALL OFF ON FLASH
DORMANT OFF ON ON