Traversing of NAT address translation equipment for signaling messages compliant with SIP protocol
US9036645B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2007 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Nov 13, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M7/128
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Method of setting up a communication session between a calling client (C1) and a called client (C2), through a communication network (SN1, SN, SN2) containing at least one address translation device (NAT1, NAT2). This method contains stages for the transmission of signaling messages (fs), passing through at least one address translation device and allowing the exchange of the physical addresses of the clients. At least one of the clients implements a solution for the traversing of address translation devices. The method is innovative in that at least one client adds, within the sent signaling messages, a parameter representing the implementation of the traversing solution and that, in the presence of such a parameter, the network devices do not implement their own solutions for the traversing of address translation devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.