Telephonic communications – Emergency or alarm communications – Central office responsive to emergency call or alarm
Reexamination Certificate
2005-03-15
2005-03-15
Woo, Stella (Department: 2643)
Telephonic communications
Emergency or alarm communications
Central office responsive to emergency call or alarm
C379S037000
Reexamination Certificate
active
06868139
ABSTRACT:
Methods for accurate transmission of ELIN/callback number from an emergency caller calling from behind a PBX/MLTS include prioritizing the emergency call, assigning a port equipment number to each device/trunk of the PBX/MLTS and associating ports/devices with ELINs and callback numbers. The apparatus of the invention detects an emergency number, assigns the call priority, and uses the port/device number to determine the ELIN/callback number and properly transmit the ELIN/callback number.
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Frank Richard
Kucmerowski Dennis
Meiden David A. Vander
Ozery Nissim
Stumer Peggy M.
Siemens Communications Inc.
Woo Stella
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