On Mon, 28 Nov 2005, MH wrote:
Mmm...
Make sure the adapter is supported under OpenBSD, or however you plan to
'rig' it.. VoIP is SIP/port 5060.
Keep in mind 5060 is just the SIP signalling port. If you're looking to
match for altq, you really should be interested in the RTP streams, which
use all sorts of high random ports.
Vonage was one of the first to do "sip through NAT" which basically means
that they bought something similar to this:
http://www.juniper.net/products/sbc/vf3000.html (a few of the white papers
there explain in detail how they work around the limitations of SIP/RTP
and NAT)
It's almost as ugly a protocol as H.323, but not quite. Luckily almost
all VoIP providers now use a Session Border Controller as above to make
things a little more sane.
Charles
-M
I got the VoIP adapter, a D-Link DVG-1120M, for AT&T's
CallVantage VoIP service and I want to put it behind the
firewall(pf on OpenBSD 3.8) and do queueing, etc. I tried
last night for a while but couldn't get it to work.
I searched the list and found some helpful threads, but I was
wondering if there's anything I have to do for this specific
VoIP adapter and/or for CallVantage.
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