What to do for poor incoming/outgoing call quality

Last Update date : 2015.03.12


The GT-S8000 (Jet) handset can automatically detect strongest radio signal and can select it to maintain normal service.

Basically incoming/outgoing call quality is depending on radio signal level measured by handset.

[Related Symptom]

    Low call quality

    Low success rate of call connection

    Dropped calls


In the case of poor incoming/outgoing call quality, please check the followings:

1. Check Idle screen display of handset.

     Name of service provider (PLMN) should be displayed properly and this should be matched with your SIM card provider and roaming partners.

     Antenna bar should be displayed properly.

2. Handset can get incoming call and make out going call with any number of antenna bars. However to get stable and good quality of voice, more than 2 antenna bars are recommended.

3. Check individual signal level of 2G and 3G.

     Select Main menu > Select Setting > Select Network settings.  

     Select Network mode.

     Select GSM 900/1800 to check 2G signal level.

     Select UMTS 900/2100 to check 3G signal level.

     Select other network mode if you want (Change to automatic again if you are moving to another area.)

4. If handset can do this automatically, Automatic setting will be strongly recommended.

5. If you still have same problems, power off and turn on handset.

[Important reminders]

If you do not find any abnormal symptom after having done the steps above, please contact network operator for assistance.


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