voice class server-group using DNS name

[Bill]

I'm looking to use the voice class server-group command in a CUBE config, and looks like we can only use ipv4 or ipv6 as an address type.

Any way I might be able use a DNS name instead?

Doesn't look like it.

I suppose I could translate it to IP, but if the carrier changes their IP address, it will break.

Thanks

[Roger Kallberg]

AFAIK there is no way to use DNS names in server groups.

[b.winter · Accepted solution]

Hi,

As Roger said, it isn't supported currently.

But why don't you use the standard dial-peer command "session target ..." for routing? (e.g. session target dns:sipserver.example.com).

The CUBE tries to resolve this FQDN on its own then.

Maybe an interesting/helpful info about this command:

If you have the command "session target dns:sipserver.example.com", the cube treats the dns-name as a domain and does a SRV lookup first (e.g. SRV _sip._tcp.sipserver.example.com --> A Record/Port ?)

If he doesn't get any answers, only then he treats the dns-name as a normal FQDN and tries to resolve the A Record to an IP address

(A Record sipserver.example.com --> IP ?).

SRV lookup should be avoided, if the sip-provider doesn't publish any SRV records.

To avoid the SRV lookup, the command can be configured with a port "session target dns:sipserver.example.com:5060".

[Steven L]

you could also define SRV records on the CUBE itself. it really depends on what problem you are trying to solve.

In the original post, i think just using session target DNS would accomplish what the OP is trying to do.

[Bill]

I did use 'session target' and it works. I was just wondering if there was another way using server groups.

Thanks