TELEPHONE SYSTEM AND METHOD FOR RELIABLE EMERGENCY SERVICES CALLING

• US 20100046722A1
• Filed: 10/15/2009
• Published: 02/25/2010
• Est. Priority Date: 04/19/2002
• Status: Active Grant

• Current Assignee: Verizon Patent and Licensing Incorporated (Verizon Communications Inc.)
• Original Assignee: Verizon Business Global LLC (Verizon Communications Inc.)
• Inventors: LASS, Steven L., Gallant, John Kenneth, Truetken, John L.
• Granted Patent: US 8,515,019 B2
• Time in Patent Office: Days
• US Class Current: 379/45
• CPC Class Codes: H04M 1/2535 adapted for voice communication over an Internet Protocol [IP] network Voice over Internet Protocol (VoIP) network equipment and services H04M7/006; implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04M 1/27485 Appending a prefix to or inserting a pause into a dialling sequence
• CPC Class Codes: H04M 1/72418 for supporting emergency services
• CPC Class Codes: H04M 11/04 with alarm systems, e.g. fire, police or burglar alarm systems
• CPC Class Codes: H04M 2242/04 for emergency applications
• CPC Class Codes: H04M 3/42314 in private branch exchanges
• CPC Class Codes: H04M 7/0057 Services where the data services network provides a telephone service in addition or as an alternative, e.g. for backup purposes, to the telephone service provided by the telephone services network
• CPC Class Codes: H04M 7/006 Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 76/50 for emergency connections

Abstract

A method of routing a telephone call includes receiving an indication, at a handset device 112, to initiate a telephone call. It is then determined, preferably by the handset device 112, whether the telephone call is an emergency services telephone call. If the telephone call is not an emergency services telephone call, it is routed to a proxy server 134. On the other hand, if the telephone call is an emergency services telephone call, it is routed to a local gateway 116 without first accessing the proxy server 134.

Claims

1. A method of routing a telephone call at a local customer premise, the method comprising:

receiving, at a handset device, an indication to initiate a telephone call;

determining if the telephone call is a first type of telephone call;

if the telephone call is not a first type of telephone call, routing the telephone call to a proxy server; and

if the telephone call is a first type of telephone call, routing the telephone call to a local gateway without first accessing the proxy server.

2-26. -26. (canceled)