Method, device, and system for obtaining address of SIP registration server
US9749362B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2013 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Mar 31, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L61/59
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method, device, and system for obtaining an address of a SIP registration server. The method includes: obtaining, by a branch device, a domain name system DNS resource record for specifying the location of service SRV response message; adding information of a SIP local survivable registration server to the DNS SRV response message; and returning the DNS SRV response message to which the information of the SIP local survivable registration server is added to a branch terminal, so that the branch terminal obtains an Internet protocol IP address of the SIP local survivable registration server according to the information of the SIP local survivable registration server in the DNS SRV response message. The solutions provided by the present invention ensure normal working of the branch terminal and saves costs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.