Cryptex Phone, Unique or Weird?

Cryptex Phone, a new concept design of phone-shaped tubular devoid of keyboard and screen, to simplify the use of devices. There are rings in its dock for each number. And it needs to rotate each ring first until you see the figure when you want to make a call. It is a unique a phone system but it also has a regret side, how we can make a conversation, where is the earphone exactly. Unique but also weird for a phone.