Processing

Please wait...

Settings

Settings

Goto Application

1. US20110231491 - IP address discovery

Office
United States of America
Application Number 13063970
Application Date 08.01.2009
Publication Number 20110231491
Publication Date 22.09.2011
Grant Number 08965969
Grant Date 24.02.2015
Publication Kind B2
IPC
G06F 15/16
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
15Digital computers in general; Data processing equipment in general
16Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
H04L 29/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02Communication control; Communication processing
06characterised by a protocol
08Transmission control procedure, e.g. data link level control procedure
H04L 29/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
12characterised by the data terminal
H04L 29/06
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02Communication control; Communication processing
06characterised by a protocol
CPC
H04L 29/12594
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/00 - H04L27/00
12characterised by the data terminal
12009Arrangements for addressing and naming in data networks
12594Arrangements for managing names, e.g. use of aliases or nicknames
H04L 29/12094
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/00 - H04L27/00
12characterised by the data terminal
12009Arrangements for addressing and naming in data networks
12047Directories; name-to-address mapping
12056involving standard directories and standard directory access protocols
12094using Voice over IP [VoIP] directories, e.g. Session Initiation Protocol [SIP] registrar or H.323 gatekeeper
H04L 61/1529
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
61Network arrangements or network protocols for addressing or naming
15Directories; Name-to-address mapping
1505involving standard directories or standard directory access protocols
1529using voice over internet protocol [VoIP] directories, e.g. session initiation protocol [SIP] registrar or H.323 gatekeeper
H04L 61/3085
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
61Network arrangements or network protocols for addressing or naming
30Arrangements for managing names, e.g. use of aliases or nicknames
306Name types
3085Session initiation protocol [SIP] uniform resource identifier [URI]
H04L 65/1006
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
65Network arrangements or protocols for real-time communications
10Signalling, control or architecture
1003Signalling or session protocols
1006SIP
H04L 65/104
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
65Network arrangements or protocols for real-time communications
10Signalling, control or architecture
1013Network architectures, gateways, control or user entities
102Gateways
1033Signalling gateways
104in the network
Applicants Hautakorpi Jani
Telefonaktiebolaget L M Ericsson (Publ)
Salinas Arturo
Inventors Hautakorpi Jani
Salinas Arturo
Agents Leffler Intellectual Property Law, PLLC
Title
(EN) IP address discovery
Abstract
(EN)

A method and apparatus each facilitate communication between users of a SIP-based network and SIP users external to that network. Each user of the SIP-based network possesses a SIP URI comprising a host name part belonging to the network and a user name part. The external users have access to a peer-to-peer network to resolve SIP URIs into contact IP addresses. The method comprises publishing into said peer-to-peer network a mapping between an identifier of a gateway to said SIP-based network and an IP address of the gateway. The identifier corresponds to or is derivable from said host name part. Upon receipt of a query at the gateway in respect of a URI associated with one of said users of said SIP-based network, the URI is resolved into a contact IP address. The contact IP address is returned to a node from which the query originated.