Method and apparatus for supporting out of area phone number for emergency services
AssigneeAT&T Corp.
InventorsMarian Croak, Hossein Eslambolchi
Life of this patent
Estimating the term…
Abstract
A method and apparatus for enabling a service provider to map a subscriber service address to a specific Public Safety Answering Point (PSAP) and then provides an association between the subscriber's out of area phone number and the correct PSAP are disclosed. When the subscriber places an emergency call, such as an E911 call, the network performs a database lookup obtaining the corresponding PSAP associated with the subscriber's service address and routes the call to that PSAP accordingly.
Claims17
A method for supporting an emergency service in a communication network, comprising:
- receiving an emergency call setup message from a subscriber using an out of area phone number, wherein said out of area phone number reflects a different geographic location from a service address associated with said subscriber;
- and
- sending said emergency call setup message to a Public Safety Answering Point (PSAP), where said PSAP supports a geographic location associated with said service address, wherein said sending comprises:
- obtaining said service address of said subscriber using said subscriber's out of area phone number;
- identifying said PSAP for receiving said emergency call setup message;
- and
- sending said emergency call setup message together with said out of area phone number and said service address to said PSAP.
A computer-readable medium having stored thereon a plurality of instructions, the plurality of instructions including instructions which, when executed by a processor, cause the processor to perform steps of a method for supporting an emergency service in a communication network, comprising:
- receiving an emergency call setup message from a subscriber using an out of area phone number, wherein said out of area phone number reflects a different geographic location from a service address associated with said subscriber;
- and
- sending said emergency call setup message to a Public Safety Answering Point (PSAP), where said PSAP supports a geographic location associated with said service address, wherein said sending comprises:
- obtaining said service address of said subscriber using said subscriber's out of area phone number;
- identifying said PSAP for receiving said emergency call setup message;
- and
- sending said emergency call setup message together with said out of area phone number and said service address to said PSAP.
An apparatus for supporting an emergency service in a communication network, comprising:
- means for receiving an emergency call setup message from a subscriber using an out of area phone number, wherein said out of area phone number reflects a different geographic location from a service address associated with said subscriber;
- and
- means for sending said emergency call setup message to a Public Safety Answering Point (PSAP), where said PSAP supports a geographic location associated with said service address, wherein said means for sending comprises:
- means for obtaining said service address of said subscriber using said subscriber's out of area phone number;
- means for identifying said PSAP for receiving said emergency call setup message;
- and
- means for sending said emergency call setup message together with said out of area phone number and said service address to said PSAP.
Dependencies are inferred from the claim text.