What do you mean te service is busy?

busy p>te service is a mobile service, and it is a short message prompt tone. When the user's mobile phone sends a short message, it will send a prompt tone that te service is busy, and the user can choose to cancel or keep the prompt tone. If the user wants to cancel the prompt tone, he can go to the phone settings, find the "sound and vibration" option, then find the "te service busy" option and turn it off.