Requirement: Unity 2019.4.11 or higher | File size: 16 MB

The Phone Call System is a complete template for implementing unlimited styles of Phone Interaction. The has 3 included variants: Payphone, Office and Mobile - These allow you to input a varied string code to the length of your choice, which if matched by the player will allow you to play an audio clip - In this case, a phone recording or call.

HomePage:

https://assetstore.unity.com/packages/templates/systems/phone-call-system-173402