Method for address translation device traversal for SIP signaling messages through temporary use of the TCP transport protocol
US8040800B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2008 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Jan 13, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L61/2585
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for establishing a communication session between a first communication client located within a first communication network, and a second communication client, via a signaling server located within a second communication network distinct from the first communication network and connected thereto via a address translation device. The method includes the step of binding a first address and a second address of the first communication client within the address translation device, by having the first communication client transmit registration messages according to the UDP protocol to the communication server. The method further includes saving, at the communication server, an incoming signaling message sent from the second communication client and intended for the first communication client; replying, by the communication server, to the registration message of the first communication client that follows with a reply message requesting that the first communication client send a new registration message using the TCP protocol; and delivering, by the communication server, the incoming signaling message after the new registration message using the TCP protocol has been received from…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.