Patent ID: 6522732
Filing Date: 2003-02-18
Classification: H04M,H04Q

Abstract:
A computerized method of preserving stable calls during a split mode operation of telecommunications equipment, comprising:sending, for each call block, a call block update message from a first side of the telecommunications equipment to a second side of the telecommunications equipment, the call block update message including dynamic call state data on the stable call handled by the first side and stored in a call block file in the first side of the telecommunications equipment sending a call block update acknowledgement message from the second side of the telecommunications equipment to the first side of the telecommunications equipment in response to the call block update message; repeating the above steps until all dynamic call state data in the call block file is duplicated and sent to the second side; scanning the call block file of the first side and reading the dynamic call state data for each stable call; populating the call block update message with the dynamic call state data; and sending the call block update message to the second side; setting an equalization flag; scanning the call block file of the first side using a call update pointer, the call update pointer dividing the call block file into an updated portion and a non-updated portion; reading new dynamic call state data stored into the updated portion of the call block file in response to the set equalization flag; populating the call block update message with the newly stored dynamic call state data; and sending the call block update message to the second side of the telecommunications equipment.