US Patent No. 10,659,427

CALL PROCESSING CONTINUITY WITHIN A CLOUD NETWORK


Patent No. 10,659,427
Issue Date May 19, 2020
Title Call Processing Continuity Within A Cloud Network
Inventorship Mark A. Ratcliffe, Oakhurst, NJ (US)
Chaoxin Qiu, Austin, TX (US)
Assignee

Claim of US Patent No. 10,659,427

8. A method comprising:obtaining information associated with transition of communication sessions control from a first instance of a virtual network function (VNF) to a second instance of the VNF, the information comprising a threshold time to begin duplication of state data;
determining that the threshold time to begin duplication of state data is reached;
based on the determining that the threshold time to begin duplication of state data is reached, duplicating state data from a first state database associated with the first instance of the VNF to a second state database associated with the second instance of the VNF;
determining that a threshold time to alter connectivity is reached; and
based on the determining that the threshold time to alter the connectivity is reached, providing instructions to alter a domain name system (DNS) record for the first instance of the VNF.