Title:
DATA COMMUNICATION METHOD
Document Type and Number:
Japanese Patent JP3891195
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for exchanging data between two hosts with respect to an Internet phone, UMTS application or multimedia communication.
SOLUTION: Two hosts which communicate with each other, belong to private networks 1, 2 having their own private address spaces, respectively. The networks 1, 2 include network address translators (NAT) 3, 4, 5, 6 and proxy servers 7, 8 accessible from a public address space. Each host transmits a path-coupled signaling message towards the proxy server of a network of the opposite host. The direction is determined on the basis of information from a protocol for initializing connection. A public IP address is allocated to each of the hosts by the NAT of a network of the corresponding host through which the path-coupled signaling message passes.
Inventors:
Martin steamering
Marx Bruner
Michelle martin
Marx Bruner
Michelle martin
Application Number:
JP2004331356A
Publication Date:
March 14, 2007
Filing Date:
November 16, 2004
Export Citation:
Assignee:
NEC
International Classes:
H04L12/46; H04L29/06; H04L12/56; H04L29/12; (IPC1-7): H04L12/46; H04L12/56
Domestic Patent References:
| JP2003229915A |
Attorney, Agent or Firm:
Yuji Katsuragi
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