Patent ID: 7899453

Claim:
A system for call processing, comprising: a communication terminal with an International Mobile Subscriber Identity (IMSI) and multiple Mobile Subscriber International Service Digital Network Numbers (MSISDNs), and a communication network, wherein the multiple MSISDNs include a main-number and sub-numbers, each of the sub-numbers corresponding to an incoming call answering policy, outgoing call number policy, and an identity group, the identity group comprising a communication list of contacts of a same identity type; the communication network is adapted to send to the communication terminal an incoming call message with a first sub-number among the sub-numbers as a called number, and send to a called terminal an outgoing call message configured by the communication terminal, and the communication terminal is adapted to: receive the incoming call message and process the incoming call message according to the incoming call answering policy corresponding to the first sub-number, when the communication terminal receives a call request; and configure the outgoing call message according to the outgoing call number policy corresponding to a second sub-number among the sub-numbers when the communication terminal sends a call request or returns a call answer, and send the outgoing call message to the communication network, wherein the second sub-number corresponds to the called terminal and the called terminal is within the communication list.