Patent ID: 8005484

Claim:
A method for providing location information, comprising: receiving, by a ring back tone device, a call with a called number for a called party from a calling party; sending a positioning request including the called number of the call; receiving location information of a terminal of the called party based on the called number; comparing the received location information to a pre-defined normal location to determine whether the location of the terminal is a one of inside and outside a normal location; and generating a user-understandable form of the location information of the terminal of the called party to a calling party of the call only when the location of the terminal of the called party is compared to be outside the normal location; generating a ring back tone excluding location information of the terminal of the called party to the calling party when the location of the terminal of the called party is compared to be inside the normal location; sending a one of the user-understandable form of the location information or the ring back tone to the calling party; wherein the call is connected to the ring back tone device based on a route address of the ring back tone device if there is a subscription record of ring back tone location service corresponding to a user of the call; wherein the subscription record of ring back tone location service corresponding to the user of the call and the route address of the ring back tone device are set in a Home Location Register; wherein the call is connected to the ring back tone device by a Mobile Switching Center based on the route address of the ring back tone device if there is the subscription record of ring back tone location service corresponding to the user of the call; and the Mobile Switching Center acquires the subscription record of ring back tone location service corresponding to the user and the route address of the ring back tone device from the Home Location Register.