Imagine you open the APP, then you select someone of your contact list and call him (EVERYTHING INSIDE THE APP).
Immediately the call goes to SPEAKER, so the USER could still looking to the APP.
As the user looks to the app, he's able to select a variety of pre-recorded PHRASES (that i'll provide as pre-recorded sounds) that will match with the common things people say as they hangon a call to develop a conversation.
The USER select one of those many PHRASES(pre-recorded) and play it! The listener should be able to HEAR it so they will be able to develop a normal dialog as they were talking and the USER (of the app) can select the next PHRASE as the listener starts to give answers.
The main idea is to play a JOKE on your friend.
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