How to create an SRV record for the CSTA service
Darcy, Kevin
kevin.darcy at fcagroup.com
Thu Sep 13 20:38:20 UTC 2018
CSTA? Are you talking about the Unify Openscape Voice stuff? If so, then
that's a VoIP platform, the SRV records are used for SIP stuff. So the
service name is "sip" or "sips". You can't just make up service names, out
of thin air, for "dumb" devices that have service names baked into their
code -- you have to publish records with a service name that they are going
to be able to find.
Our SRV records for Openscape Voice look like, basically,
_sips._tcp.{sip-domain}. 3600 IN SRV 10 0 5061 {target}
and/or
_sip._udp.{sip-domain}. 3600 IN SRV 5 0 5060 {target}
I'm simplifying a bit here. Each of them has a primary (pref 5) and a
failover (pref 10).
The port numbers correspond to what IANA has published at
https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.txt
sip 5060 tcp SIP
2014-04-09
[RFC3263]
sip 5060 udp SIP
2014-04-09
[RFC3263]
sip 5060 sctp SIP
[RFC4168]
sips 5061 tcp SIP-TLS
2014-04-09
[RFC3263]
sips 5061 udp SIP-TLS
2014-04-09
[RFC3263]
sips 5061 sctp SIP-TLS
Talk to your Voice folks for the values to plug in for {sip-domain} and
{target}, in each case.
-
Kevin
On Thu, Sep 13, 2018 at 3:58 PM King, Harold Clyde (Hal) <hck at utk.edu>
wrote:
> OK I made mistakes. I’m sorry for wasting anyone's time, I really am.
>
> I was trying to see if anyone had even made an SRV record for the CSTA
> service. My presentation of the dig example was a poor choice.
>
>
> --
> Hal King - hck at utk.edu
> Systems Administrator
> Office of Information Technology
> Shared Systems Services
>
> The University of Tennessee
> 103C5 Kingston Pike Building
> 2309 Kingston Pk. Knoxville, TN 37996
> Phone : 974-1599
> Helpdesk 24/7 : 974-9900
>
> On 9/13/18, 12:30, "Reindl Harald" <h.reindl at thelounge.net> wrote:
>
>
>
> Am 13.09.18 um 18:03 schrieb King, Harold Clyde (Hal):
> > You have me dead to rights on that. I was trying to make an example
> and failed. Here's my record:
> > _csta._tcp.csta.example.com. 3600 IN SRV 20 0 1040
> hostname.example.com
>
> so why don't you just send an unaltered record instead of 3 mails?
>
> the first two ending with a dot but missing fields, the last one seems
> to have all fields but the traling dot is missing
>
> csta.example.com. is a subdomain "csta" below example.com
> is that desired?
>
> "hostname.example.com" instead "hostname.example.com." means
> "hostname.example.com.example.com"
>
> again: don't provide mangeled informations when you need help - frankly
> the only obfusction you can make es replace your domain name and ONLY
> that with example.com
>
> the first is a working example from a microsoft SIP record and now
> compare it to your real setup
>
> _sipfederationtls._tcp 3600 IN SRV 1 100 5061
> sipfed.online.lync.com.
> _csta._tcp.csta.example.com. 3600 IN SRV 20 0 1040
> hostname.example.com
>
>
>
>
>
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