Create app for Android

to Create a client application to lock the phone, only calls are allowed on the server.
To gain the client only the name(number) which will give a particular client server.
When you call displays only the name of the callee (the phone number is not shown and that to see him was not possible)
Must also record all the conversations.
The customer must start the application as soon as turns on the phone that is to close the application that would not be possible,
what if there were 2 buttons to call and fold, pressing call, he selects a Name which sent him a server.
The same function should be to answer the call (must be hidden telephone number)
To create a Server for Android which allows you to fully control the Client, to listen to recordings remotely, just connect to the client anonymously and listen to what the employee talks with the customer.
the server must be able to send the phone number and the name of the client.
There will be many so this should be taken into account.