[OpenSIPS-Users] Using Dispatcher with destination as a host name

[Bogdan-Andrei Iancu]

Hello John,

The dispatcher module will simply push the configured destination SIP
uri (from dispatcher table) as destination for the call ($du or $ru) -
it is the t_relay() which will evaluate the destination from DNS point
of view, doing NAPTR, SRV and A lookup - if there are multiple choices,
weights will be used to select the result, but at the end only one IP
will be used at a time. The other IPs may be used via dns-based failover
if first IP results in timeout or 502 replies. The dns-based failover,
if activated, will be automatically done by TM (as serial forking),
totally transparent for the script.

Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com


On 05/07/2013 12:03 PM, John Quick wrote:
> Sorry, I just realised there may be other factors in this duplicate INVITE
> problem so it may not be connected with the DNS resolving to two IP's.
> I would still be interested to know how dispatcher should behave when using
> a host name that resolves to more than one IP.
>
> John Quick
> Smartvox Limited
> Web: www.smartvox.co.uk
>
>
>
>
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