Patent ID: 8644482
Filing Date: 2014-02-04
Classification: H04L,H04M

Abstract:
1. In a callee Customized Ringing Signal (CRS) Application Server, a method for implementing Customized Ringing Signal (CRS) services thereof, the method comprising: receiving a call request initiated by a caller at a caller's terminal to a callee at a callee's terminal; based on the received call request, parsing a CRS policy for determining priorities set therein by a CRS user; identifying conditions of a caller's CRS tone, a callee's CRS tone, or both, for comparison with the priorities set within the CRS policy; and based on the comparison, determining a priority of the callee's CRS tone relative to the caller's CRS tone for deciding what CRS tone needs to be played to the callee's terminal; wherein if the callee's CRS tone has priority, substituting an early callee CRS media request for an early caller CRS media request, after receiving the early caller CRS media request from a caller CRS AS; initiating callee CRS media negotiation with the callee's terminal by sending the substituted early callee CRS media request to the callee's terminal; and instructing a Media Resource Server (MRS) to play the callee's CRS tone to the callee's terminal; otherwise, if the caller's CRS tone has priority, allowing a caller AS to perform media negotiation with the callee's terminal.