Product: Mobile > Cell Phones > More Cell Phone Providers > Metro PCS > SCH-R360
The tone being heard in regular intervals during a call would be the Minute Beep feature. This feature is meant to serve as a reminder of the minutes used on a particular call.
To disable the minute beep feature follow the steps below:
For More Information On The MetroPCS SCH-R360 (Freeform 2), Click Here!