My Jelly Pro Blue cannot receive calls sometimes. Specifically, other phones will directly go to voice mail when calling my phone, as if my phone is turned off. My phone can immediately receive calls after rebooting, but won't do it after a couple minutes when my phone goes to standby mode (press the power button so the phone goes black screen but didn't actually shut down completely).
I tried resetting the phone to factory mode and tried both SIM card slots to no avail. My SIM card works normally when I tried it on an Iphone. I also checked "No disturb mode" and it seemed the settings were fine. I have my phone updated to the latest system software as of today.
Please help me as I have already wasted precious amount of time on this and don't want to try anymore.
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