*!How to fix push notifications for Android OS

This FAQ can help you enable services and parameters that are necessary for smooth operation of 2N® Mobile Video app. Normally the app will configure all the permissions, and push notification mechanisms by itself however because the Android OS is optimised from each smart phone manufacturer, the settings may be different, more strict or use different names or sections in the setting menu.The settings is also dependend on the Android OS version.

In case that you have some issues with the 2N® Mobile Video  such as:

• Incoming calls from intercom are not received while app is in background (smartphone is not ringing)
• Incoming calls from intercom are not received while the smartphone is locked (smartphone is not ringing)

There are 4 main setting features that needs to be checked:

• Battery optimisation - Some phones are switching off the apps due to the battery usage - push notifications may or may not work, depending on the implementation of the rule for each vendor. It is good to try to exclude the 2N® Mobile Video from battery optimisation.
• Auto-start of the app during the boot of the phone - Some phones require first start of the app to be able to send the push notifications to this specific app. If the auto-start is not allowed the push notification may not be received.
• Push notification settings - If push notification is disabled for the specific app, the app won't be awake during the incoming call.
• App permissions - It is always good to check the permissions - if the parameters here are disabled the app wont be working properly.

How to fix the push notifications on Huawei and Honor phones? (Also Samsung Galaxy J3) - General guide

The EMUI of Huawei Android based phones is using very aggressive battery saving methods. These Huawei's proprietary features may cause the 2N® Mobile Video application (and other communicators and instant messaging apps) unreachable when running in the background.

Proceed please with following steps:

1. Go to Settings -> Advanced settings -> Battery manager -> Protected apps, then find the app you want to see notifications from (Mobile Video app), and protect it. This is "whitelisting" the app so Huawei's overeager software doesn't shut it down for no reason.
   
   
2. Go to Settings -> Apps -> advanced -> Ignore battery optimizations, then find the app (Mobile Video) and ignore it. Don't be tricked by the misleading wording, "ignoring" the app actually means to let it run, because you're telling the battery optimization function to "ignore" that app.
   
   
3. Go to Settings -> Notification panel & status bar -> Notification centre, then find the app (Mobile Video), then activate "allow notifications" and also "priority display". You have to activate the priority part too to make sure you get notifications.
   
   
4. Restart your phone.

For further details see this article: http://www.forbes.com/sites/bensin/2016/07/04/push-notifications-not-coming-through-to-your-huawei-phone-heres-how-to-fix-it/#1ab6c4b778aa

How to fix the push notifications on Xiaomi MIUI 8 - General guide

Xiaomi MIUI 8 phones are using very aggressive battery saving methods. These proprietary features may cause the 2N® Mobile Video application (and other communicators and instant messaging apps) unreachable when running in the background.

Proceed please with following steps:

• Go to settings --> manage apps' battery usage --> choose apps. From there, pick all the apps you want to receive push notifications and select "No restrictions."

• Go to settings --> permissions --> autostart. From there, pick the apps you want to receive notifications, and toggle the switch to turn it on.

• Go to settings --> app notifications --> pick the apps you want to receive notifications, then turn the toggle for "Priority" on.
  
• Lock the app in the "recent apps"/ "app overview" plane. Do so by first opening the apps, then press the "recent apps/overview button" (that's the square button on stock Android, or the button with three horizontal lines on the Mi Mix). From there, find the app you want to receive notifications, pull down on it to "lock it", so it never gets cleared.
• This last step requires Developer Options privileges. To enable that, go to settings --> about phone and tap on MIUI version tab like eight times. You should then get a little message saying "you are now a developer." Then head back out to settings, go to developer option, scroll to nearly the bottom, find "memory optimization," and turn it off.

For further details see this article: https://www.forbes.com/sites/bensin/2016/11/17/how-to-fix-push-notifications-on-xiaomis-miui-8-for-real/#2b07d4bb7572

Smartphone settings examples

Honor 10

Lenovo S60

Xiaomi MEG 7

Google Pixel