US 12,261,817 B2
Domain resolving
Rogier August Caspar Joseph Noldus, Goirle (NL)
Assigned to Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 17/779,188
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Nov. 29, 2019, PCT No. PCT/EP2019/083177
§ 371(c)(1), (2) Date May 24, 2022,
PCT Pub. No. WO2021/104653, PCT Pub. Date Jun. 3, 2021.
Prior Publication US 2022/0417209 A1, Dec. 29, 2022
Int. Cl. H04L 61/4511 (2022.01); H04L 65/1104 (2022.01)
CPC H04L 61/4511 (2022.05) [H04L 65/1104 (2022.05)] 17 Claims
OG exemplary drawing
 
1. A method performed by a first session initiation protocol (SIP) server of a network, the method comprising:
initiating transmission of a SIP message towards a node at an edge of the network, the SIP message comprising a domain name and a directive, the directive including information associated with a domain name system (DNS) server, the information being processed by the node to determine the DNS server for resolving the domain name to identify one or more internet protocol (IP) addresses of a second SIP server to which the SIP message is to be sent, the DNS server associated with the information of the directive being:
a different DNS server than that derivable from the domain name of the SIP message.