if self.prev_running_service:
self.session.nav.playService(self.prev_running_service)
elif self.paused_service:
self.paused_service.unPauseService()
if self.prev_running_service:
self.session.nav.playService(self.prev_running_service)
elif self.paused_service:
self.paused_service.unPauseService()