There are two options which will help you troubleshoot this problem:
First, upgrade your CallHippo Android App to the latest version.
Second, please try following settings for battery optimization and Permissions.
Battery optimization
1. Huwai- Apps and notifications -> Apps -> Settings -> Special Access -> Ignore battery optimization -> Allowed-drop down -> All apps -> CallHippo -> Allow Mobile settings -> Apps and notifications -> Apps -> CallHippo -> Battery -> Launch -> All the options here should be ON.
2. OnePlus- Settings -> battery -> battery optimization -> select CallHippo -> Don’t optimize
3. Redmi- Settings -> Permissions -> Autostart-> Find CallHippo App and turn on ‘Autostart’
Settings ->Battery -> performance ->Chosse apps -> Select Callhippo -> Select off options (or No
restrictions).
Storage Permissions
Settings-->Applications-->CallHippo-->Permissions--> all permission should be allowed (including storage and phone)
Re-login into your Android App and you should be good to go.
If you have a different brand Android device. Please check Battery optimization settings and turn it off and grant all Permissions.
If you are still facing the same issue. Please feel free to write us at support@callhippo.com