Patent ID: 7668839
Filing Date: 2010-02-23
Classification: G06F,H04L

Abstract:
1. A communications system comprising a first and a second server and a storage, said first server comprising: said second memory storing a second replica of the processing in connection with the second HTTP and second identification information of the processing in connection with the second HTTP to be associated with each other, the second replica to be a replica of the processing in connection with the first SIP, said first server further comprising a first transmitter for transmitting third identification information of the processing in connection with the first SIP and the second identification information to said storage, said storage comprising a third memory having an access to information stored in said third memory from said first and second servers for storing the third identification information and the second identification information to be associated with each other, said second server comprising a fourth memory for storing the second replica and the second identification information in synchronous with said second memory, said first server further comprising a first synchronizer for synchronizing said second memory with said fourth memory to store the second replica and the second identification information into said fourth memory; and said second server further comprising a second acquirer operative in response to said second server having received the signal in connection with the first SIP for acquiring from said third memory the second identification information associated with the third identification information, said second acquirer acquiring from said fourth memory the second replica associated with the second identification information to restore the processing in connection with the first SIP from the second replica, said second server further comprising a third processor operative in response to the processing restored by said second acquirer for executing the processing of the signal received by said second server in connection with the first SIP.