The default call duration is displayed in seconds. With a custom formula field you can display it in minutes.
Select: Setup > Customize > Activities > Activity Custom Fields
Then select the button New and Formula
Then select Text
Copy the following formula into the text field.
IF((MOD(CallDurationInSeconds/60,1)*60) > 10, TEXT(FLOOR(CallDurationInSeconds/60)) + ':' + TEXT(FLOOR(MOD(CallDurationInSeconds/60,1)*60) ), TEXT(FLOOR(CallDurationInSeconds/60)) + ':0' + TEXT(FLOOR(MOD(CallDurationInSeconds/60,1)*60) ))
Add the field to the task page layout. |