Method and system for enabling emergency calling from nomadic VoIP extension telephones
First Claim
1. A method for providing emergency call services to a VoIP extension telephone, comprising:
- receiving in a network a call from the VoIP extension telephone;
determining whether the call is an emergency call;
routing the call, if it is determined to be an emergency call, to a PSAP associated with a first caller ID;
routing the call, if it is determined not to be an emergency call, to its non-emergency destination associated with a second caller ID.
2 Assignments
0 Petitions
Accused Products
Abstract
A method and system for handling calls to emergency telephone numbers by a VoIP telephone that is configured as an extension to a home telephone. The VoIP telephone is provided with a home telephone number that is different than the home telephone number. The location of the VoIP telephone is maintained in a caller ID location database and is regularly updated when necessary. Location updates are made at least when the VoIP telephone registers using a different IP address than was used for the most recent communication. The system is configured to enable the VoIP telephone to ring when a call is placed to the home telephone number. In addition, non-emergency calls from the VoIP telephone are accompanied by caller ID information associated with home telephone. In this way, VoIP telephones may be configured as extension telephones and used to make emergency calls, even when being used nomadically.
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Citations
19 Claims
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1. A method for providing emergency call services to a VoIP extension telephone, comprising:
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receiving in a network a call from the VoIP extension telephone; determining whether the call is an emergency call; routing the call, if it is determined to be an emergency call, to a PSAP associated with a first caller ID; routing the call, if it is determined not to be an emergency call, to its non-emergency destination associated with a second caller ID. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for enabling a nomadic emergency-call capability in a VoIP extension telephone, comprising:
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providing the VoIP extension telephone with a home telephone number, the home telephone number associated with a home telephone; providing the VoIP extension telephone with a hidden telephone number; associating the hidden telephone number with the home telephone number; and determining the current location of the VoIP extension telephone; wherein associating the hidden telephone number with the home telephone number comprises enabling the VoIP extension telephone associated with the hidden telephone number to alert when a call is directed to the home telephone number. - View Dependent Claims (13, 14, 15, 16)
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17. A system for enabling emergency calls from a VoIP telephone that is configured as an extension of a home telephone but is provided with a different telephone number than the home telephone number, the system comprising:
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a telephony feature server for re-assigning caller ID information to non-emergency calls from the VoIP extension telephone so as to provide the home telephone information to the called party; an IMS core for determining whether a call is an emergency call, routing the call to a telephony feature server if it is not, and routing the call to an emergency access gateway if it is an emergency call. - View Dependent Claims (18, 19)
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Specification