Signal Strength Warning notify by sound and vibration when signal drop (GSM signal lost) or is above selected level (in ASU or dBm). It also show signal level in notification area and notification drawer. Never miss an important phone call again.
9Apps 4.9
![국세청 홈택스 [손택스] on 9Apps](https://sg-res.9appsdownloading.com/sg/res/jpg/f7/df/69cc2f90120ec331db2630e0f5b6-6dh.jpg?x-oss-process=style/jmq200)
