Why is the record not auto saving

We have a custom field on the Task that is called Call Outcome, it is a picklist. If a user chooses a value from the field on the soft phone layout they need to hit ‘save’ in the corner - why is it not auto saving the data? I don’t want to put the 5 minute delay on the record because I do not know how long the calls will be. Other dialers we have worked with auto save the data and update the task - does any one know if there is a way to auto save a change in the data on the soft phone