What was the telephone with a round dial control called?

Rotary dial phones are the earliest user controlled phone to be mass produced. Prior to the rotary phone a user would pick up the phone, wait for the operator to answer and then tell the operator who they wanted to be connected with. With the rotary dial, the user was able to dial freely, allowing for quicker and more convenient connection to the people they wanted to speak with.

Source: Techwalla