I want to test asterisk with its DID functions on a smaller scale without the expense of a PRI. I am in the US, and want the most reliable/stable, and feature rich solution that I can have. What ISDN card would be reccommended? My clec switch operator says he can/will send DID info to my BRI's if I wish. Can Asterisk, or one of its addons support this? What BRI solution would be reccommended? ISDN4Linux, chan_capi? Any info is appreciated, I hope to get this right the first time without having to buy more hardware after the initial purchase. Any advice from you guys with experience would be appreciated. Chad -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20030620/e59beb37/attachment.htm
Just as an example I have just put an ISDN system up a few days ago.. I am still in the process of getting my head around it but it terms of hardware and software I have used chan_capi and a passive AVM PCI card that I picked up off Ebay here in the UK for ?4.20.. So far I have just got it to the point where I am able to make calls and have not had the serious echo problems that everyone warns about when using a passive card.. This is a very cheap way to get a system up and running and to get your head around it.. Then after that you can move on to the more expensive PRI/T1/E1 type systems.. The AVM passive card was suggested to me by Kapjod (The creator of chan_capi.) and it was really good advice.. I have a system now that has cost me very little to setup but is fully functional.. Also I don't know what the availablity of these cards is in the US.. I'm sorry but can't answer you questions about DID.. I am still learning.. :) Later..> I want to test asterisk with its DID functions on a smaller scale without the expense of a PRI. I am in the US, and want the most reliable/stable, and feature rich solution that I can have. > > What ISDN card would be reccommended? > > My clec switch operator says he can/will send DID info to my BRI's if I wish. Can Asterisk, or one of its addons support this? > > What BRI solution would be reccommended? ISDN4Linux, chan_capi? Any info is appreciated, I hope to get this right the first time without having to buy more hardware after the initial purchase. > > Any advice from you guys with experience would be appreciated. >Chad -- ______________________________________________ http://www.linuxmail.org/ Now with e-mail forwarding for only US$5.95/yr Powered by Outblaze
Asterisk supports DID, chan capi too. The echo issue happens when the other party is on a analogue line, so some electrical echo is generated by the 4 wire to 2 wire hybrid on local loops. If the other party is on a digital line , no echo is present ;) The best * isdn solution is chan capi. I've used it with inexpensive avm passive cards, and with *very* expensive eicon diva server cards (4BRI). the latter has onboard dsp to get rid of echo problems (and these dsp are supported onl by chan capi, not by i4l ). Matteo. Il sab, 2003-06-21 alle 04:41, Chad Sawyer ha scritto:> I want to test asterisk with its DID functions on a smaller scale > without the expense of a PRI. I am in the US, and want the most > reliable/stable, and feature rich solution that I can have. > > What ISDN card would be reccommended? > > My clec switch operator says he can/will send DID info to my BRI's if > I wish. Can Asterisk, or one of its addons support this? > > What BRI solution would be reccommended? ISDN4Linux, chan_capi? Any > info is appreciated, I hope to get this right the first time without > having to buy more hardware after the initial purchase. > > Any advice from you guys with experience would be appreciated. > > Chad
Klaus-Peter Junghanns
2003-Jun-22 10:41 UTC
[Asterisk-Users] best ISDN BRI solution for DID
Hi Chad, if you are in the US you will need an ISN card that speaks NI-1. The only CAPI cards that work with NI-1 are the Eicon Diva Server cards. They are expensive active cards but the onboard DSP does echo cancelation and some people already sucessfully use them in the US. regards kapejod -- Klaus-Peter Junghanns CEO,CTO Junghanns.NET GmbH Breite Strasse 13 - 12167 Berlin - Germany fon: +49 30 79705392 fax: +49 30 79705391 iaxtel: 1-700-157-8753 email: kpj@junghanns.net http://www.junghanns.net/asterisk Am Sam, 2003-06-21 um 04.41 schrieb Chad Sawyer:> I want to test asterisk with its DID functions on a smaller scale without the expense of a PRI. I am in the US, and want the most reliable/stable, and feature rich solution that I can have. > > What ISDN card would be reccommended? > > My clec switch operator says he can/will send DID info to my BRI's if I wish. Can Asterisk, or one of its addons support this? > > What BRI solution would be reccommended? ISDN4Linux, chan_capi? Any info is appreciated, I hope to get this right the first time without having to buy more hardware after the initial purchase. > > Any advice from you guys with experience would be appreciated. > > Chad