Being USB 1.1 is not a problem - there is more than enough bandwidth for a
BRI in USB. The handsets used in the BRI install are Snom 360's with
firmware 5.3 and internal users have complained of slight echo, however I
believe this is more to do with the Snoms than the Draytek adapters. For
faxing use we have installed a Grandstream ATA 286. I haven't had any
feedback yet regarding problems or success with faxing for this customer. I
would have expected to hear of any problems faxing by now but I will try to
follow it up, however as long as the latency is consistent (ie minimal
jitter in the USB stack) it shouldn't cause any problems for fax.
At work in our own office we have two SNOM 360's and people with them also
complain of slight echo. (We are using TE110p PRI for PSTN). The rest of
our office use a combination of Sipura 841, Cisco 7960 and Grandstream BT101
and there are no echo complaints with any of these non Snom handsets, so at
this point it doesn't appear that these BRI adapters have echo problems.
Craig
----- Original Message -----
From: "James Harper" <[EMAIL PROTECTED]>
To: "Asterisk Users Mailing List - Non-Commercial Discussion"
<[email protected]>
Sent: Sunday, March 12, 2006 7:35 AM
Subject: RE: [Asterisk-Users] MultiBRI in Australia - found one - maybe
I have ordered one (for $71 from the supplier you mentioned, although I
have since found another supplier who appears to have them for $55!!!)
and will run whatever testing I can.
Someone from Cologne has commented that because it us a USB device,
there may be some latency issues (which will amplify any echo problems)
and I suspect that faxing may also suffer a bit. They are also only
USB1.1, but I'm not sure if that's a problem.
Have you tested faxing? Even if faxing doesn't work well enough to be
useful because of the delays, I think this is a very nice solution to my
problem (lack of BRI hardware in AU). Thanks again for bringing it to my
attention!!!
James
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:asterisk-users-
[EMAIL PROTECTED] On Behalf Of Craig Guy
Sent: Friday, 10 March 2006 14:35
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] MultiBRI in Australia - found one -
maybe
We didn't ask specifically for new ones. I believe the old ones went
out
of
stock a long time ago. We ordered four at once and they all came with
the
HFC chipset.
Craig
----- Original Message -----
From: "James Harper" <[EMAIL PROTECTED]>
To: "Asterisk Users Mailing List - Non-Commercial Discussion"
<[email protected]>
Sent: Friday, March 10, 2006 8:38 AM
Subject: RE: [Asterisk-Users] MultiBRI in Australia - found one -
maybe
> Note that
> it is only the currently available minivigors that have the HFCS-USB
> chipset, older ones on the secondhand market and eBay most likely
use
a
> Winbond chipset.
Is there any chance that they would sell me an old one? Do I need to
ask
specifically that they supply the HFC one?
Thanks
James
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