Product: Mobile > Cell Phones > T-Mobile Cell Phones > SGH-E715
The Vibrate+Melody feature on the phone is programmed to vibrate 3 times and it will then play the selected ringtone. The Vibrate + Melody option does not play both simultaneously. If the phone is vibrating but you are not hearing the ringtone, it would be because the phone is being answered during the vibrate portion of the feature, prior to the ringtone playing. Unfortunately there is not an option to combine the two to play together.
For more information on the SGH-E715 click here.