ZTE Corporation ZTEF188 사용자 설명서

 

• The network signal is too weak at your 

current location, for example, in a 

basement or near a tall building, 

because wireless transmissions can not 

effectively reach it. 

Move to a location where the 

network signal can be properly 

received. 

• The network is busy at the current time 

(for example, during peak times, there 

may be too much network traffic to 

handle additional calls). 

Avoid using the phone at such 

times, or try again after 

waiting a short time. 

• You are too far away from a base station 

for your service provider. 

You can request a service area 

map from your service 

provider. 

• Poor network trunk quality on the part 

of your service provider. 

Press       and dial again. 

You may be switched to a 

better-quality network trunk or 

phone line. 

 

• Poor local telephone line quality. 

 

Press       and dial again. 

You may be switched to a 

better-quality network trunk or 

phone line. 

 

Your service provider does not support 

these features, or you have not applied 

for services that provide these features. 

Contact your service provider. 

 

If you encounter problems while using the phone, or if it performs erratically, you can consult 

the information in the chart below. If your particular problem cannot be resolved using the 

information in the chart, contact the dealer where you purchased the phone.