I seem to recall this has always been there.  If you add the option to parse a domain in the Sofia profile then you can add gateway entries inside user tags of the directory and if that user registers then so will all the gateways inside it. 

On Jul 20, 2013 10:25 AM, "openser" <openser@yeah.net> wrote:
I lean from another mail, sangoma  has  developed this feature, may be they can contribute ?

thanks. 
At 2013-07-19 22:52:26,"Michael Jerris" <mike@jerris.com> wrote:
>I think someone needs to write the code before we could merge it to git.  Were you offering to develop this?
>
>On Jul 18, 2013, at 11:39 PM, openser <openser@yeah.net> wrote:
>
>> Hi,
>> 
>> I'd like this feature to be core , as we announce freeswitch can be as a
>> SBC, sip upper register is a 
>> key feature for session border controller.  shall we merge this to git or ?
>> 
>
>
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