My memory is a bit hazy, but when I was watching dns requests with
tcpdump when I first installed sipX (a few months back now) the sipX
server performs SRV lookups, and if they fail, perform A lookups.

The thing I'm not certain of is whether the sipX will cache lookups /
choose a different gateway each time (I assume this is what you want by
load balance). I do believe that for high availability you're better to
put the two gateways in the config because if sipX fails connecting to
the gateway it will fail the call, rather than try the next gateway when
the DNS returns multiple results.

Memory is hazy. I may be wrong :)

On Tue, 2008-10-21 at 10:17 -0600, Farr, Steven C. wrote:
> Kyle, the concept with your SRV records looks right, but someone more 
> knowledgeable than me will have to answer whether sipX can perform SRV 
> lookups instead of A lookups.

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