27 Feb
2009
27 Feb
'09
12:52 p.m.
26 feb 2009 kl. 18.27 skrev Daniel-Constantin Mierla:
On 02/26/2009 07:08 PM, Iñaki Baz Castillo wrote:
A problem here is of course the good old NAT issue. Even if the phones
have
DNS support, having a NAT in between the phone and a provider's server
more or less force a provider to use some IP failover solution to be
able
to keep the NAT binding.
DNS helps with failover and some load balancing from the client side,
so it's a good complement.
I have not yet received requests for NAPTR support in Asterisk, even
though
with our recent baby steps into the TLS/TCP world, we really do need
them.
/O
2009/2/26 Daniel-Constantin Mierla
<miconda(a)gmail.com>om>:
I think the sip server implementations are pretty good here. Besides
that, for client interaction it is required only DNS server
configuration, nothing in sip server.
What I meant is the headache for sip server providers to deploy two
different fault tolerant solution:
- one based on DNS
- one based on shared/virtual IP or load balancer
Each of them will require maintenance, man power, etc... Anyway, even
with second option, good DNS in phones does not harm. However, being out there so many phones without
such support, it is
practically unusable since service providers won't deploy
different server
solutions for each group of devices, so they stick to one size
fits all and
that is not DNS for now.
Devices don't implement it, so service providers don't implement it,
so devices don't implement it, so... XD