Reolink app for Doorbell POE improvement

[user_602247015034913_602247015034913]

Hello,

I have bought the POE Doorbell because the gate are distant from the house approximately with 150m. So I have an intermediate switch.
I'm disappointed because the chime work with the doorbell by radio RF433mhz and the limit is 100m (not see in the specifications)... It have worked well when I tested the doorbell in the house.
Now i try to use the doorbell only with an Android tablet inside the house, but I have problem. The notification is not really in real time, there is some delay...

With the tablet in landscape mode, i don't have the button to respond to the visitor nor the prerecord message... Is'it possible to add this feature in the App in the landscape mode??
In the portrait mode the 2 button are present but the video is small...

What are the limit of number of app notified on the visitor Pushbutton ? Is it possible to have 2 iphone and 2 android in the same time ?

Thanks