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1. AU2003241036 - Establishing a call and removing a media proxy from the call flow in a packet-based communications network

Office
Australie
Numéro de la demande 2003241036
Date de la demande 09.06.2003
Numéro de publication 2003241036
Date de publication 11.09.2003
Type de publication A
CIB
H04L 29/12
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
LTRANSMISSION D'INFORMATION NUMÉRIQUE, p.ex. COMMUNICATION TÉLÉGRAPHIQUE
29Dispositions, appareils, circuits ou systèmes non couverts par un seul des groupes H04L1/-H04L27/135
12caractérisés par le terminal de données
H04L 29/06
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
LTRANSMISSION D'INFORMATION NUMÉRIQUE, p.ex. COMMUNICATION TÉLÉGRAPHIQUE
29Dispositions, appareils, circuits ou systèmes non couverts par un seul des groupes H04L1/-H04L27/135
02Commande de la communication; Traitement de la communication
06caractérisés par un protocole
H04L 29/08
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
LTRANSMISSION D'INFORMATION NUMÉRIQUE, p.ex. COMMUNICATION TÉLÉGRAPHIQUE
29Dispositions, appareils, circuits ou systèmes non couverts par un seul des groupes H04L1/-H04L27/135
02Commande de la communication; Traitement de la communication
06caractérisés par un protocole
08Procédure de commande de la transmission, p.ex. procédure de commande du niveau de la liaison
H04M 7/00
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
MCOMMUNICATIONS TÉLÉPHONIQUES
7Dispositions d'interconnexion entre centres de commutation 
CPC
H04L 61/2514
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
61Network arrangements or network protocols for addressing or naming
25mapping of addresses of the same type; address translation
2503Internet protocol [IP] address translation
2507translating between special types of IP addresses
2514between local and global IP addresses
H04L 61/2557
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
61Network arrangements or network protocols for addressing or naming
25mapping of addresses of the same type; address translation
2503Internet protocol [IP] address translation
2557Translation policies and rules
H04L 61/2567
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
61Network arrangements or network protocols for addressing or naming
25mapping of addresses of the same type; address translation
2503Internet protocol [IP] address translation
256Network address translation [NAT] traversal
2567for reachability, e.g. inquiring the address of a correspondent behind a NAT server
H04M 7/006
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
7Arrangements for interconnection between switching centres
006Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer
H04L 65/1043
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
1043MGC, MGCP or Megaco
H04L 65/1069
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
65Network arrangements or protocols for real-time communications
10Signalling, control or architecture
1066Session control
1069Setup
Déposants NORTEL NETWORKS LIMITED
Inventeurs Aoun, Cedric
Mitchell, Julian
Roshko, Michael
Données relatives à la priorité 10173058 17.06.2002 US
Titre
(EN) Establishing a call and removing a media proxy from the call flow in a packet-based communications network
Abrégé
(EN) In order for a voice call or other communication session to be provided between entities in two different address domains, at least one of which is private, then a media proxy has previously been used to forward media packets. The present invention provides a way in which such a media proxy can be eliminated from a call flow after the initial stages of the call. This is achieved in the case that a network address translator involved in the call has a particular characteristic, such as being a cone network address translator.
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