Providing e911 service to landline phones using a voip adapter
AssigneeT-Mobile USA, Inc.
InventorsMichael Lasso, Samir Hodroj, Della Conley, Omar Hassan, Dragos Lazar
Life of this patent
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Abstract
Systems and methods for providing E911 services to a publicly-switched telephone network (PSTN) phone are described. In some embodiments, the systems and methods determine that the PSTN phone is connected to a voice over internet protocol (VoIP) adapter, identify an internet protocol (IP) address for an access point via which the adapter accesses an IP Multimedia System (IMS) network, determine a geographical location associated with the IP address, and enable E911 communications for the PSTN phone over the IMS network via the adapter based on the geographical location.
Claims18
A method for providing E911 services to a publicly-switched telephone network (PSTN) phone, the method comprising:
- determining that a PSTN phone is connected to a voice over internet protocol (VoIP) adapter,
- wherein the adapter is configured to translate communications between the PSTN phone and an IP Multimedia System (IMS) network accessed by the adapter;
- identifying an IP address for an access point (AP) via which the adapter is configured to access the IMS network;
- determining a user of the PSTN phone is at a geographical location associated with the identified IP address;
- and
- enabling E911 communications for the PSTN phone over the IMS network via the adapter based on the determined geographical location for the user.
An apparatus for providing a connection between a landline telephone and an IP Multimedia Subsystem (IMS) network, the apparatus comprising:
- a network communications circuit configured to manage communications to and from an IP multimedia system (IMS) network;
- a phone communications circuit, coupled to the network communications circuit, wherein the phone communications circuit is configured to manage communications to and from a publicly-switched telephone network (PSTN) phone,
- wherein network communications circuit and the phone communications circuit together provide voice over internet protocol (VoIP) communication services to a user of the PSTN phone, via the IMS network;
- and
- an E911 communications circuit configured to:
- determine that the PSTN phone is connected to the apparatus;
- identify an IP address for an access point (AP) via which the apparatus is configured to access the IMS network;
- determine the user of the PSTN phone is at a geographical location associated with the identified IP address;
- and
- enable E911 service for the PSTN phone over the IMS network via the apparatus based on the determined geographical location for the user.
At least one computer-readable medium, excluding transitory signals and carrying instructions that, when executed by at least one processor, cause the processor to:
- determine that a publicly-switched telephone network (PSTN) phone is connected to a voice over internet protocol (VoIP) adapter,
- wherein the adapter is configured to translate communications between the PSTN phone and an IP Multimedia System (IMS) network accessed by the adapter;
- identify an IP address for an access point (AP) via which the adapter is configured to access the IMS network;
- determine a geographical location of the PSTN phone,
- wherein the geographical location is associated with the identified IP address or provided by a user of the PSTN phone via a subscriber management system of a telecommunications carrier that provides the IMS network and includes the user as a subscriber;
- and
- enable E911 communications for the PSTN phone over the IMS network via the adapter based on the determined geographical location of the PSTN phone.
Dependencies are inferred from the claim text.