Cancel the signature of the robot singer, just call the human service to cancel.

Call signature is a value-added service that transmits additional information during the user's call. During the call, the system automatically pushes preset mobile phone signature information (mood, jokes, business information, etc.). ) to the calling party's mobile phone in the form of text, so that the other user can see the mobile phone signature information during the call, so as to achieve the purposes of showing personality, sharing feelings and transmitting business information.