Callers are not able to hear my voice on call

[anupamjha]

Model Name: Asus 6z
Firmware Version: Android (WW_18.0610.2101.127)
Rooted or not: Not
Frequency of Occurrence: Regular
APP Name & APP Version (If your issue relates to the app): No be
People who call me or when i call them then they are not able to hear my voice for 5-10 seconds suddenly during a be call. But when i make call with earphone/Speaker then they are able to hear my voice & there is no issue.I am facing the problem only with phone's earpiece for few seconds during any ongoing call but it happens for 5-6 times in every call whether it is nearby call or distant call.

[victor010]

Hi, we'd request you follow the below steps:
1. Clear system cache.
2. Please try to enter "Safe Mode". If the function works well in Safe Mode yet the issue remains out of Safe Mode, please check for any disturbance from the installed 3rd party apps.
# How to enter and exit "Safe Mode"
https://www.asus.com/support/FAQ/1005163/
3. If still you face the issue factory reset your phone after
taking a full backup : https://www.asus.com/support/FAQ/1006346/
4. Last option would be to visit the service center to have a
check. Locate here: https://www.asus.com/in/support/Service-Center/India