Glossary.
Rotary-Dial Phone. When I grew up (back in the dark ages), it was not required to define a telephone as rotary-dial. This was the only option. Using this phone required one to place an index finger (sometimes, to prevent damage to human appendages, a pencil was used) into a circular dial mounted on the base. Each number had its own hole. Making a call was done one number at a time while then waiting for the dial to complete its rotation.
Corded phone. This was also the standard for all homes. The phone was physically bolted to a wall. The distance you could ‘travel’ while talking on the phone was limited by the length of a curled plastic cord which connected the handset to the phone appliance. A private conversation was completely dependent on the authority of the person using it. If you had the power, you could banish others to locations that would prevent eavesdropping. If you had no power, well even a whisper would not prevent the entire household from knowing your business.