Settings 792. Swipe left or right to display System, and then tap extra settings.3. Configure options: Echo cancellation: Tap the ON/OFF switch to turn the option On or Off. Whenturned On, your phone uses echo cancellation to improve voice quality during phonecalls. Audio output mode: Tap the ON/OFF switch to turn the option On or Off. Whenturned On, your phone uses the external speakers for audio output when docked inan optional dock accessory (not included). Haptic feedback: Tap the ON/OFF switch to turn the option On or Off. When turnedOn, your phone vibrates when you touch the Back Key or Search Key.SoundAliveChoose an equalizer setting for sounds in Music + Videos.1. From Start, swipe left to Apps, and then tap Settings.2. Swipe left or right to display System, and then tap SoundAlive.3. Tap the field to choose an equalizer.ApplicationsBackground TasksChoose apps, to allow them to continue to run in the background, even when they’re not open.1. From Start, swipe left to Apps, and then tap Settings.2. Swipe left or right to display Applications, and then tap background tasks.3. Tap an app, and then configure options for the app to run in the background.4. Tap advanced to display apps that can run in the background, that you may not be ableto block.Data SenseUse Data sense to find more efficient ways to use cellular (mobile) data service, and displayyour data usage.1. From Start, swipe left to Apps, and then tap Settings.2. Swipe left or right to display Applications, and then tap data sense.