Method of providing 911 service to a private branch exchange
First Claim
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1. A method of providing emergency service to a private branch exchange, comprising:
- determining a first geographic location of a first telephone associated with a first internal telephone line coupled to the private branch exchange;
determining a second geographic location of a second telephone associated with a second internal telephone line coupled to the private branch exchange;
when the first geographic location and the second geographic location are substantially similar, grouping the first and second internal telephone lines to form a set; and
assigning an outgoing telephone line for an emergency call to the set.
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Abstract
A method of providing 911 service to a private branch exchange, includes grouping a plurality of private telephone numbers into a set. An outgoing telephone line for a 911 call is assigned to the set. A location information for the outgoing telephone line is input into a location database.
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Citations
20 Claims
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1. A method of providing emergency service to a private branch exchange, comprising:
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determining a first geographic location of a first telephone associated with a first internal telephone line coupled to the private branch exchange; determining a second geographic location of a second telephone associated with a second internal telephone line coupled to the private branch exchange; when the first geographic location and the second geographic location are substantially similar, grouping the first and second internal telephone lines to form a set; and assigning an outgoing telephone line for an emergency call to the set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of providing emergency service to a private branch exchange, comprising:
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grouping a plurality of internal telephones coupled to the private branch exchange into a plurality of groups based on a geographic location of the respective internal telephones; respectively assigning outgoing telephone lines to the groups, the outgoing telephone lines to be used for emergency calls; and when an emergency call is received from a first one of the internal telephones, inherently determining at the private branch exchange the location of the first one of the internal telephones by looking up the outgoing telephone line associated with the first one of the internal telephones with a logic circuit. - View Dependent Claims (10, 11, 12, 13)
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14. A method of providing emergency service to a private branch exchange, comprising:
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assigning a first one of a plurality of outgoing telephone lines to a first set of internal telephone lines, the internal telephone lines being grouped based on physical location information associated with the internal telephone lines; recording the physical location information in a location database; receiving an emergency call at the private branch exchange coupled to the outgoing telephone lines; when the emergency call originated at one of the internal telephone lines of the first set, causing an apparatus to place the emergency call over the first one of the plurality of outgoing telephone lines; receiving the emergency call at a public safety answering point; and determining a physical location of a telephone placing the emergency call based on an identity of the first one of the plurality of outgoing telephone lines. - View Dependent Claims (15, 16, 17, 18)
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19. A tangible machine accessible medium having instructions stored thereon that, when executed, cause a machine to at least:
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group a plurality of internal telephones coupled to a private branch exchange into a plurality of groups based on a geographic location of the respective internal telephones; respectively assign outgoing telephone lines to the groups, the outgoing telephone lines to be used for emergency calls; and when an emergency call is received from a first one of the internal telephones, inherently determine at the private branch exchange the location of the first one of the internal telephones by looking up the outgoing telephone line associated with the first one of the internal telephones. - View Dependent Claims (20)
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Specification