Emergency Call System Between a Telecommunication Device and an Emergency Call Center

• US 20090136007A1
• Filed: 08/31/2006
• Published: 05/28/2009
• Est. Priority Date: 10/10/2005
• Status: Active Grant

• Current Assignee: Nokia Siemens Networks GmbH & Company KG (Nokia Corporation)
• Original Assignee: Nokia Siemens Networks GmbH & Company KG (Nokia Corporation)
• Inventors: Schimper, Thomas
• Granted Patent: US 8,503,618 B2
• Time in Patent Office: Days
• US Class Current: 379/45
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04M 2242/04 for emergency applications
• 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

Abstract

For implementing an emergency call system between a telecommunication device and an emergency call center, the telecommunication device includes a log-in and log-out state via a switchable log-in function at a VoIP telecommunication service provider via an IP infrastructure consisting of at least one router. The emergency call center has a public IP number via which, in the log-out state of the telecommunication device, an emergency call connection diverting to the VoIP telecommunication service provider is safeguarded between the telecommunication device and the emergency call center.

Claims

1. An emergency call system between a telecommunication device and an emergency call center in which the telecommunication device comprises a log-in and log-out state via a switchable log-in function at a VoIP telecommunication service provider via an IP infrastructure consisting of at least one router, wherein the emergency call center has a public IP number via which, in the log-out state of the telecommunication device, an emergency call connection diverting to the VoIP telecommunication service provider is safeguarded between the telecommunication device and the emergency call center.

2. The emergency call system of claim 1, wherein the public IP number is stored as emergency call number in the telecommunication device.

3. The emergency call system of claim 1, wherein, when an emergency call coming from the telecommunication device is received, an IP number of the telecommunication device is stored in the emergency call center.

4. The emergency call system of claim 3, wherein a call back from the emergency center to the telecommunication device can be initiated by means of the IP number of the telecommunication device.

5. The emergency call system of claim 1, wherein a call of the telecommunication terminal at the emergency call center is made without registration of the telecommunication terminal at the emergency call center.

6. The emergency call system as of claim 1, wherein, with the log-in function of the telecommunication device switched on, the emergency call connection diverting to the VoIP telecommunication service provider forms a connection to a connection existing via the VoIP telecommunication service provider.