Scott Lawrence schrieb:
> On Thu, 2009-01-29 at 15:36 +0100, Johansson Olle E wrote:
>>> Don't use registration.
>>>
>>> Provision the DIDs, then all normal targeting mechanisms work just  
>>> fine.
>>>
>>> Someone will say "but what about dynamic addresses" - don't use a
>>> dynamic address for your phone system.
>>>
>> That's a good opinion, but not the reality. There are too many large
>> providers that need a registration and can't place calls on SRV/NAPTR  
>> and domains.
> 
> Domain names would be a good idea, but they are not required to use
> provisioned connections - you can provision one or more IP addresses
> almost as easily.
> 
> Registration was designed to route calls to _a_ contact - it is a
> misapplication of the mechanism to use it for any more than that, and
> that's where the difficulty comes from.
> 
> It's a mystery to me why this is so commonly used (yes, I know it is,
> and the sipXecs SIP Trunk support can do it).  Why would I want the
> reliability of my inbound calls to be controlled by my system having to
> 'poll' (that's effectively what a registration is) rather than the
> provider just knowing where to send it?

Hi Scott!

Yes, static trunk configuration would solve this issue. Nevertheless 
there are also IP PBXs behind DNS with dynamic IP addresses, thus 
registration should be supported too.

klaus
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