Gaëtan, They are using as gateway to the pstn. In fact, they are remote gateways for a centralized callcenter:
[pstn] «--» [BRI] «--» [internet] «--» [callcenter] Regards Jorge Mendoza Gaëtan Minet wrote: > Thanks > > Are you using these to connect isdn phones to the voip or to as a > gateway to the pstn for a voip system ? > > Kind regards > > Gaetan > > > On 08/09/2009, at 19:40, Jorge Mendoza wrote: > > >> We have some installations with smartnode 4554, (same tail echo >> cancellation) without problems so far. >> >> Jorge Mendoza >> >> Gaëtan Minet wrote: >> >>> Hi >>> >>> Is anybody using these ? >>> >>> Gaetan >>> >>> >>> Begin forwarded message: >>> >>> >>>> *From: *Gaëtan Minet <[email protected] <mailto:[email protected]>> >>>> *Date: *Sat 22 Aug 2009 16:29:42 GMT+02:00 >>>> *To: *Asterisk Users Mailing List - Non-Commercial Discussion >>>> <[email protected] >>>> <mailto:[email protected]>> >>>> *Subject: **[asterisk-users] Patton smartnode 463x (BRI) 25ms tail >>>> echo cancellation* >>>> *Reply-To: *Asterisk Users Mailing List - Non-Commercial Discussion >>>> <[email protected] >>>> <mailto:[email protected]>> >>>> >>>> Hi all >>>> >>>> We use pci/pci-e BRI cards in our installations. Due to echo >>>> problems >>>> (that was before Oslec and others), we quickly switched to cards >>>> with >>>> hardware-based EC. >>>> So we use exclusively Digium B410p cards that provide 64ms tail EC. >>>> >>>> For several reasons we'd like to switch to external BRI gateways >>>> like >>>> the Patton smartnodes (the price is getting really close to a >>>> B410p). >>>> >>>> I'm however curious about their HW EC. I see in the datasheets >>>> that it >>>> only has 25ms tail per channel (pri are 128ms, but not BRI). >>>> Are some of you using these gateway and do your experience (many) >>>> echo problems on calls ? >>>> >>>> Our other alternative is to use sangoma cards that have 128ms HW EC >>>> and seem more stable overall, but it is yet a bit more expensive. >>>> >>>> Thanks for your feedback. >>>> >>>> Regards, >>>> Gaetan >>>> >>>> >>>> _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2009 - October 13 - 15 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
