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+-- Forum: IP Phone Series (/forumdisplay.php?fid=4)
+--- Forum: T4x Series (/forumdisplay.php?fid=31)
+--- Thread: Protocol specification with DNS SRV (/showthread.php?tid=41838)
Protocol specification with DNS SRV - muyousif - 05-22-2018 04:37 PM
Hi We are using Yealink T4x and T2x series phones. For redundancy we are trying to configure DNS SRV records but having hard time with yealink. Is it possible to set specifically transport even in DNS SRV?
So we want to set phone to use TLS specifically when using DNS SRV to sip.xxxxx.com. It works good when we use only udp but not with TLS. We are using latest firmware on T48. 28.83.0.35
RE: Protocol specification with DNS SRV - Evan_Yealink - 05-30-2018 06:55 AM
Dear Friend, good day!
This is Evan from Yealink Support Team, nice to know you!
For your question, please set the port of SIP server as 0, and try again.
[attachment=5003]
If not help, please reproduce it and offer us the diagnosis files(level 6 local log / pcap / config.bin). Below is the FAQ about how to get the files:
http://support.yealink.com/faq/faqInfo?id=707
Please let me know if anything I could help.
Best Regards,
Evan You
RE: Protocol specification with DNS SRV - muyousif - 06-07-2018 06:40 PM
Hi Evan,
We are having same issue. See our dns srv config in dns server.
_sips._tcp.sip 20 10 5061 sip2.demo.com 180 Domain
_sips._tcp.sip 10 10 5061 sip1.demo.com 180 Domain
_sip._tcp.sip 10 10 5060 sip1.demo.com 180 Domain
_sip._tcp.sip 20 10 5060 sip2.demo.com 180 Domain
_sip._udp.sip 10 10 5060 sip1.demo.com 180 Domain
_sip._udp.sip 20 10 5060 sip2.demo.com 180 Domain
so in grandstream if set transport to udp it always query for below entries
_sip._udp.sip 10 10 5060 sip1.demo.com 180 Domain
_sip._udp.sip 20 10 5060 sip2.demo.com 180 Domain
so in grandstream if set transport to TCP it always query for below entries
_sip._tcp.sip 10 10 5060 sip1.demo.com 180 Domain
_sip._tcp.sip 20 10 5060 sip2.demo.com 180 Domain
so in grandstream if set transport to TLS it always query for below entries
_sips._tcp.sip 20 10 5061 sip2.demo.com 180 Domain
_sips._tcp.sip 10 10 5061 sip1.demo.com 180 Domain
Which gives us much better control and it is simple as well. We are trying to find similar way in yealink but unfortunately if we set port to 0 and transport to dns-srv phone only looks for UDP entries. Can you give us better way to do this procedure?
Thanks,
Muhammad Yousuf
(05-30-2018 06:55 AM)Evan_Yealink Wrote: Dear Friend, good day!
This is Evan from Yealink Support Team, nice to know you!
For your question, please set the port of SIP server as 0, and try again.
If not help, please reproduce it and offer us the diagnosis files(level 6 local log / pcap / config.bin). Below is the FAQ about how to get the files:
http://support.yealink.com/faq/faqInfo?id=707
Please let me know if anything I could help.
Best Regards,
Evan You