On Mon, Mar 1, 2010 at 3:09 PM, Gabriel Kuri <gkuri@ieee.org> wrote:

Hi Anthony,

I appreciate all the hard work yourself, Brian, Mike and all the other
developers have put in FS! By no means am I discounting any of it,
it's truly invaluable.

Our "philosophy" has always been to use DNS where available, so that
we're not worrying about re-configuring a bunch of devices if IP
addresses change and this obviously goes to setting the phones up as
well to use DNS for the proxy and registrar fields. And it allows us
to do fancy things, like split-view DNS, where if a phone is taken
off-site and we want it to remotely register to FS, it will get the
public IP address of the FS server, rather than the private, without
re-configuring the phone.

If I'm understanding your email correctly, you're saying we need to
use all IP or all DNS for SLA, is that correct? AFAIK, we're using all
DNS, but perhaps I'm missing something somewhere. How would we be able
to use the DNS name of our SIP domain in phones (rather than IP) and
ensure SLA works for both incoming/outgoing calls? Is that possible at
this point in time or do we need to use the IP addresses in the proxy
field on the phone if we want to use SLA?

Thanks for all your help.

Gabriel Kuri

On Mon, Mar 1, 2010 at 11:42 AM, Anthony Minessale
<anthony.minessale@gmail.com> wrote:
> you can use names if you use *all names*
> you just can't mix, but all IP is much faster and safer because there is no
> need to do constant dns lookups on something that never changes anyway, you
> can easily alias your profile to a friendly name, it also makes it more
> portable.
>
>
>
>
> On Mon, Mar 1, 2010 at 1:30 PM, Yehavi Bourvine <yehavi.bourvine@gmail.com>
> wrote:
>>
>> Hello Anthony,
>>
>> 2010/3/1 Anthony Minessale <anthony.minessale@gmail.com>
>>>
>>> I am trying my best not to be completely annoyed at the "somewhat
>>> limiting" remark after going over the countless hours I spent making sure
>>> this feature work and then being patient with 2 people insisting there was a
>>> bug when they both shared an identical misconfiguration.
>>
>> "somewhat limiting" was because my experiments up to now with Polycom and
>> SIP/TLS were successfull with domain names only. However, I am going to
>> inverstigate this further to see how this can work with IP only.
>>
>> In the meantime I've documented the required configuration under the
>> Polycom wiki page.
>>
>>>
>>> If we started doing DNS lookups everywhere so hostname could be
>>> interchanged with IP we would have large blocking all over the place when
>>> the DNS was not available and horribly messy code doing all the lookups.
>>> There was already an experiment called project asterisk that proved the
>>> flaws in this design approach.
>>>
>> I think that's why some of us move from Asterisk to FreeSwitch. I also
>> preffer less to no DNS lookups on a critical system which must work even
>> when there are some kinds of communication problems.
>>
>> Thanks, __Yehavi:
>>
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>
>
>
> --
> Anthony Minessale II
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