On Thu, 2008-04-24 at 20:17 -0400, Steve Totaro wrote: > The Sangoma kernel drivers are different than Zaptel, while running > the install script you are asked if you would like to generate the > Zaptel configs but it is not required, you must also run wancfg to > configure the cards beyond the Zaptel configs. The Sangoma drivers > kind of run on top of the Zaptel.
Thanks for clearing that up. That's what I thought too. > It seems that the newest wanpipe drivers and Zaptel 1.4 work without > the D chan patch which is very nice IMO, I hate patches. That's good to hear. The less patches the better. > I have run > the BRIStuff install and it has tons of patches! Kind of scary but it > works for it's purpose. Yesterday I had to update a set of 1.2 Asterisk RPMs with the latest Junghanns patch. So I downloaded the latest Junghanns patch and had a look. Wow, that's a serious set of patches to zaptel, libpri and asterisk. Kind of scary indeed. > I have only done BRI once but there was absolutely no echo by simply > setting echocancel=yes, echocancelwhenbridged=no. Personally I use an Eicon Diva Server card with onboard echo can in my * box and calls to cellphones can still generate a ton of echo. Same applies to calls to POTS phones that are hooked up to copper that's in a rather bad state or use a €5 phone. > I hear "might as well get the hardware EC board" quite a bit, but on > all the many dozens of PRIs I have installed, software EC has been > adequate (if needed at all). It would have meant quite a bit of > wasted money that was better spent on a nice 48 port gigabit switch. Lucky you :) Or your upstream telco has deployed some serious echo can boxes throughout its network doing echo cancellation already for you. > I have tested both ways (hardware vs. software), no difference really > (Sangoma). Sangoma actually sent me one of each before purchasing > seven quad cards to test if hardware EC was going to be required for > one deployment. I returned the hardware EC card and ordered seven > quad PRI cards. > > Maybe I am just lucky or have not had enough exposure to BRI but ISDN > is ISDN, right (it really is a question, I don't know)? EuroISDN is EuroISDN. Doesn't matter if it's BRI or PRI. > Now on > analog, that is a horse of a different color, also the phone on > either side, but especially your side can be the culprit (older > Grandstream for one) Polycom seems to eliminate much of this. Point well taken. You get what you pay for. Regards, Patrick > Thanks, > Steve Totaro > > On Thu, Apr 24, 2008 at 7:50 PM, Matt Watson <[EMAIL PROTECTED]> > wrote: > > I haven;t used any BRI cards but... call me crazy but wouldn;t they > still be using Zaptel (even your sangoma... the script might just be > configuring it for you)... > > > > and btw, software echo cancel happens in the zaptel kernel > driver... it has nothing to do with the hardware (hence why its a > software echo cancel).... > > > > You also would of had the option of buying HPEC licenses for > software echo cancel from digium for a rather cheap price. > > > > -- > > Matt > > ________________________________________ > > From: [EMAIL PROTECTED] > [EMAIL PROTECTED] On Behalf Of Andres > [EMAIL PROTECTED] > > Sent: Thursday, April 24, 2008 5:04 PM > > To: Asterisk Users Mailing List - Non-Commercial Discussion > > Subject: Re: [asterisk-users] Digium B410P or Sangoma A502D? > > > > > > > > We have tested both and they work fine. The Sangoma is much easier > to > > install as it does not depend on any other driver, you just run > > 'setup-sangoma' and follow the instructions. You don't have to > fiddle > > with the linux kernel or zaptel or chan_misdn. It just works. > Plus > > its more modular. You can chose 2/4/6 ports to buy and if you need > more > > just add remoras up to 24 ports. The Digium card is fixed to 4 > ports, > > period. > > > > Having said that, make sure you stick with the version that has > hardware > > echo cancel and not even try the other one. We made the mistake of > > buying the first time without echo cancel expecting to test the > > 'software echo cancel'. But there is no such thing as 'software > echo > > cancel' on this card. I do not even understand why Sangoma would > make a > > version without the hardware echo cancel. You get some degree of > echo > > on practically every call. > > > > Andres. > > > > > > > > Patrick wrote: > > > > >Hi, > > > > > >I need to setup an Asterisk box with 4x ISDN BRI links. Looking at > the > > >specs of various cards I favor the Digium B410P and Sangoma A502D > > >because of hardware echo cancellation. Does anyone have any > experience > > >with either card, good or bad? Which one would you choose and why? > > > > > >Thanks for your insight. > > > > > >Regards, > > >Patrick _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users