Mark Coccimiglio wrote:
Hey all,
It such a shame that BRI technology is such a flop in the USA. For a
small office such as mine it would be a great product. So her goes my
question.... What is a known asterisk working BRI card that will
operate in the USA. I need to weigh price/quality. I need to do
DID/DDI (or what ever you want to call it). Asterisk will do everything
else I need. The ILEC has at the other end a DMS-100. I have been
having all kinds of problems using POTS lines that I will consider it an
investment to move to a more digital connection. I am considering
going the VoIP route (Vonage, Broadvoice, etc...) but before I commit
either way I'm exploring all my options.
Your opnion matter here to please let me know.
Mark Coccimiglio
[EMAIL PROTECTED]
sip:[EMAIL PROTECTED]
In theory, bri makes a lot of sense, flawless disconnect detection, 8
directory numbers, placing a caller on hold is done by the switch and
doesn't tie up a line, and on. But my experience hasn't been all that
encouraging.
I've had a bri line in Seattle for about 4 years or so. The local Qwest
co switch is a 5ESS. It took about 3 months to get it properly
provisioned for a couple of Lucent 970 phones. And that's only because
one of their techs felt sorry for me, came in on a Saturday and followed
the provisioning instructions I found on a telecom site. I'm now
convinced that if I had provided a copy of the 5ESS screens with my
order and they actually got to the tech, I would not have had a problem.
Next, I got a Eicon Diva board and tried to get the hisax kernel driver
working. It's ni-1 implementation, the only one I could find, isn't very
complete. It was written by a guy in Australia using only an isdn
simulator, a significant accomplishment. It appears that it's intent was
to just place outgoing data calls. At best, it would signal my POTS
line, but give up during call setup. Unfortunately, our layer 3 protocol
is secret and the specs have to be purchased from Telcordia. The last
time I checked, assuming I chose the right publication, it was about $600.
Adding ni-1 to either Junghanns' work or visdn probably wouldn't be that
difficult given the specs. Both of these drivers happily talk to my $10
HFC-PCI card and negotiate, then assign a tei to the phone. So, the
existing layer 1 and 2 stuff configured as point-to-multipoint seems to
work fine. My understanding is that all bri's, both here and in Europe,
use the same Q.920/921 standards. It's layer 3 that's different. Given
an ni-1 protocol stack, hardware like Junghanns' 4 and 8 port cards
should work with Asterisk here too.
So,
- Telcordia NI-1 specs
- Some code
- Detailed provisioning instructions for at least a 5ESS and a DMS-100
Anybody interested?
Steve
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