Priority based methods and apparatus for transmitting accurate emergency location identification numbers (ELINs) from behind a multi-line telephone system (MLTS)
First Claim
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1. A method for processing an emergency call made from behind a PBX/MLTS coupled to a private network, said method comprising the steps of:
- a) within the PBX/MLTS determining whether dialed digits represent an emergency number;
b) assigning priority within the PBX/MLTS to a call determined to be an emergency call, such that said call takes priority over other calls in traversing said private network before reaching a public network trunk;
c) storing a port equipment number for each device/trunk in the PBX/MLTS; and
d) associating a callback number with each port equipment number.
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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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Citations
11 Claims
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1. A method for processing an emergency call made from behind a PBX/MLTS coupled to a private network, said method comprising the steps of:
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a) within the PBX/MLTS determining whether dialed digits represent an emergency number; b) assigning priority within the PBX/MLTS to a call determined to be an emergency call, such that said call takes priority over other calls in traversing said private network before reaching a public network trunk; c) storing a port equipment number for each device/trunk in the PBX/MLTS; and d) associating a callback number with each port equipment number. - View Dependent Claims (2, 3, 4)
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5. A method for processing an emergency call made from behind a PBX/IMLTS coupled to a private network, said method comprising the steps of:
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a) within the PBX/MLTS determining whether dialed digits represent an emergency number; b) assigning priority within the PBX/MLTS to a call determined to be an emergency call, such that said call takes priority over other calls in traversing said private network before reaching a public network trunk; c) storing a port equipment number for each device/trunk in the PBX/IMLTS; and
d) associating an emergency location identification number (ELIN) and a callback number with each port equipment number. - View Dependent Claims (6)
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7. An apparatus for processing an emergency call made from behind a PBX/MLTS coupled to a private network, said apparatus comprising:
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a) means within the PBX/MLTS for determining whether dialed digits represent an emergency number; b) means for assigning priority within the PBX/MLTS to a call determined to be an emergency call, such that said call takes priority over other calls in traversing said private network before reaching a public network trunk; c) means for storing a port equipment number for each device/trunk in the PBX/MLTS; and d) means for associating a callback number with each port equipment number. - View Dependent Claims (8, 9)
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10. An apparatus for Processing an emergency call made from behind a PBX/MLTS coupled to a private network, said apparatus comprising:
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a) means within the PBX/MLTS for determining whether dialed digits represent an emergency number; b) means for assigning priority within the PBX/MLTS to a call determined to be an emergency call, such that said call takes priority over other calls in traversing said private network before reaching a public network trunk; c) means for storing a port equipment number for each device/port in the PBX/MLTS; and d) means for associating an emergency location identification number (ELIN) and a callback number with each port equipment number. - View Dependent Claims (11)
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Specification