To reach higher accessibility and a simplified flow of communication between a SIP-terminal and Telavox platform, it’s possible for the terminal to take advanta- ge of DNS SRV posts to locate Telavoxs servers. Normally, DNS A posts are used to see what IP-address a server has. All terminals that are provisioned by Telavox use DNS SRV posts to set the name service to sip.telavox.se.
A terminal that is configured to use DNS SRV posts for SIP over UDP, therefore it makes a suggestion to the address _sip._udp.sip.telavox.se.
In Windows CMD/Powershell
nslookup -type=SRV _sip._udp.sip.telavox.se
Bash Terminal UNIX/OSX
dig SRV _sip._udp.sip.telavox.se
If you are using a physical PBX with a SIP-trunk. the traffic will go to siptrunk.telavox. se.