Mongolian:
Mobicom users can use the Magic Voice application to make calls to any mobile operator user as many times a day as they choose from 8 types of voices and 8 types of ambient sounds. Make Magical and Fun calls with your friends and loved ones with this exciting service that updates voices and ambient sounds for the seasons and holidays.
Instructions for use: You log into the application, select one of the ambient sounds and voice, and enter the phone number of the person you want to call.

privacy policy: https://www.magiccall.co/magiccallivrapp/privacy_policy.html

English:
MobiCom users can add 8 different types of Voice and 8 different types of Ambiance using the Magic Voice application to make calling more fun.
Instructions for use: You can log into your application, choose Voice or Ambiance and enter the phone number of your caller.