#7 Add one layer before the calling page

[kenmaro3]

Description

Feedback from the one user saying "bit surprised when enter the room and immediately his face shown in the page."
Although call is actually not occuring right unless user hit the call button, this page layout might scare the user.
Therefore, to prevent this from happening, I decided to put one layer before the calling page, there, I suggest that layer have following features,

Main Features

• button to enter the calling room.
• button to send the line notice to the registered user.

Detail descriptions

1. It let the user go in only if there is the pair in the room. Otherwise, it returns the alert and will not let user in.
2. They are in the line group as being created before. If there is some volunteer from that member to come in to that room, user are allowed to get in.