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U8510-1 Maintenance Manual Basic Version V1.0
Internal
11.3 Voice Call Test
1. Insert USIM card to mobile phone, press and hold Power key to power on.
2. Check whether the signal strength is changed normally in normal network environment.
3. Dial a fixed-line number to test the voice quality during a call.
4. If the preceding tests are normal, end the voice call test. Otherwise, perform the test again or note
down failure symptoms for further analysis and repair.
2011-05-28
Huawei confidential. No spreading without permission.
Page 61 of 61
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