[asterisk-users] Sending call to specific IP address

[Paul Hayes]

On 23/05/11 22:30, Elliot Murdock wrote:
> Hello,
>
> I am wondering how to send a call to a specific IP address that is
> different than the host of the URI.  For example, an invite to the URI
> is "john at phone.com <mailto:john at phone.com>" needs to be sent to the IP
> address 123.456.789.255, not to the IP address of phone.com
> <http://phone.com>.
>
> How is this done?
>
> Thanks,
> Elliot
>
>

Unless I'm misunderstanding the question, the owner of "phone.com" 
should use DNS SRV records to advertise where to send SIP traffic to if 
it is not the same as the A record for "phone.com".

E.G.

paul at barney:~$ host provu.co.uk
provu.co.uk has address 81.187.73.2

paul at barney:~$ host -t SRV _sip._udp.provu.co.uk
_sip._udp.provu.co.uk has SRV record 0 1 5060 pbx.provu.co.uk.

cheers,
Paul.