Hi all, Does anyone have any good/bad comments on the A1200P 12-port fxo/fxs card from OpenVox? I'll be using one to with 8-12 fxo interfaces.? The cards will be plugging into a cable-modem / phone adapter.? We weren't able to port the numbers, so we're going to use the existing PSTN connection and replace all of the office phones. With these short distances, will I need to worry about echo?? Do these devices have echo cancellation? TIA, -- Take care and have fun, Mike Diehl. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20110127/039765f3/attachment.htm>
Hi Mike, I have used the A1200P without hardware echo cancelation and didn't have any major issues. The one problem I had was that caller ID simply would not work on the A1200P, it was fine on the A400P however. This was a year ago though so things may have changed a little. Regards, Ryan. From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Mike Diehl Sent: Friday, 28 January 2011 7:23 AM To: "Asterisk Users Mailing List - Non-Commercial Discussion"; mdiehl at diehlnet.com Subject: [asterisk-users] A1200P comments? Hi all, Does anyone have any good/bad comments on the A1200P 12-port fxo/fxs card from OpenVox? I'll be using one to with 8-12 fxo interfaces.? The cards will be plugging into a cable-modem / phone adapter.? We weren't able to port the numbers, so we're going to use the existing PSTN connection and replace all of the office phones. With these short distances, will I need to worry about echo?? Do these devices have echo cancellation? TIA, ________________________________________ Take care and have fun, Mike Diehl.
Mike, if the delay in your calls (i.e. end-to-end) is over 100ms echo might be a
problem.
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On Thu, 2011-01-27 at 14:22 -0700, Mike Diehl wrote:> Hi all, > > Does anyone have any good/bad comments on the A1200P 12-port fxo/fxs > card from OpenVox? > > I'll be using one to with 8-12 fxo interfaces. The cards will be > plugging into a cable-modem / phone adapter. We weren't able to port > the numbers, so we're going to use the existing PSTN connection and > replace all of the office phones. > > With these short distances, will I need to worry about echo? Do these > devices have echo cancellation? >The A1200P does not have hardware EC, you will have to use software. The card works quite well but you have to avoid using a server with an NVIDIA chipset like the plague. OpenVox cards are alergic to those chipsets so try using Intel and you will be fine. -- Telecomunicaciones Abiertas de M?xico S.A. de C.V. Carlos Ch?vez Prats Director de Tecnolog?a +52-55-91169161 ext 2001 -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 198 bytes Desc: This is a digitally signed message part URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20110128/6a79219b/attachment.pgp>