Patent ID: 7573982
Filing Date: 2009-08-11
Classification: H04L,H04M

Abstract:
1. A method of managing call information at a Public Safety Answering Point (PSAP), the PSAP in communication with a Automatic Location Identification ALI database, comprising: receiving an analog voice call from a caller, converting the analog voice call to a digital voice call, collecting information from the caller, wherein collecting information about the caller comprises receiving, from the ALI database, geographical coordinates when the caller is a wireless caller, sending a handshake message across a network to determine if other PSAPs are connected to the network, wherein the PSAP recognizes when the other PSAPs are added to, moved, or deleted from the network; when other PSAPs are connected to the network, determining whether to transfer the caller to a subsequent PSAP if certain conditions are satisfied, wherein determining whether to transfer the caller to the subsequent PSAP comprises determining if the PSAP is compatible with a recognized transmission schema by querying the subsequent PSAP with an acknowledgment message, requesting acknowledgment from the subsequent PSAP of the recognized transmission schema, and when the subsequent PSAP acknowledges the recognized transmission schema, transferring the caller, the digital voice call, and the collected information to the subsequent PSAP if the certain conditions are satisfied.