Patent ID: 8284767

Claim:
A call processing method of a same number service, comprising: receiving, by a first service platform in an IP network, a call which is initiated by a calling client and carries an initial called number when the calling client is a session initiation protocol (SIP) client in the IP network, and sending a message to a first switching equipment in the IP network when the initial called number is a number of the same number service wherein the message carries the initial called number with a same number service characteristic; receiving, by the first service platform, a call request which is initiated by the first switching equipment and carries the message; adding, by the first service platform, a third access code before a calling number or the initial called number according to the message, sending the calling number added with the third access code or the initial called number added with the third access code to the first switching equipment, and connecting the first switching equipment to a communication network in which the same number terminal is located according to the initial called number when the first switching equipment receives a call in which the third access code is added before the calling number or the initial called number, wherein the same number terminal which corresponds to the initial called number and the calling client are located in different communication networks; acquiring, by a second switching equipment in the communication network in which the same number terminal is located, subscription information of the initial called number in the call; connecting, by the second switching equipment, the call to a second service platform in the communication network in which the same number terminal is located according to the subscription information; judging, by the second service platform, that the call is an incoming call of a same number service platform according to the third access code carried in the call; and instructing, by the second service platform, the second switching equipment to call the initial called number in the communication network in which the same number terminal is located.