How to change the duration format of the call module to leave hour, minutes and seconds

Good afternoon in the module calls the customer when making or using the cell phone application and from there, makes calls to customers the system captures the duration, but we have the problem that when the call lasts less than 60 seconds is not recorded because the format is only hours and minutes.
We ask you to let us know if you can make a configuration in the field and be able to record the seconds.
or how you can modify the code to make them

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