Hello, Please forgive me for i'm not an asterisk user yet. I've done as much research as I can .. and have the following questions. I'm setting up a new office and a home office and i'm shopping for hardware. Office: 2 analog lines Hardware: TDM412B (2 FXO, 1FXO) Link: http://www.voipsupply.com/index.php?cPath=99_555_556 Cost: $303 Home: 1 analog line Hardware: TDM421B (2 FXS, 1 FXO) Link: http://www.voipsupply.com/product_info.php?products_id=3980 Cost: $300 Questions: [1] Can I use oslec for echo cancellation? I'll have beefy hardware. Is echo cancellation necessary? [2] Can I get PCI express x1 cards for the same price? I'm on budget, Any other cards (sangoma? rhino?) that might work well? I'm sure these questions have been asked before.. :-) Steve -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20080506/a45eea28/attachment.htm
Questions: [1] Can I use oslec for echo cancellation? I'll have beefy hardware. Is echo cancellation necessary? Yes you can use oslec provided that either your distribution has a zaptel package with the oslec patch (or you build the zaptel drivers + oslec yourself) Well without echo cancelation you will probably have a number of calls that have either very bad sound quality or are simply annoying With your set i.e 3-4 lines processing requirments are minimal so you should not worry about that.We have been able to run oslec for 4 lines on a 266Mhz (no its not Ghz) powerpc embedded board with very good results Stelios S. Koroneos Digital OPSiS - Embedded Intelligence http://www.digital-opsis.com <http://www.digital-opsis.com/> _____ From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Steve Repo Sent: Wednesday, May 07, 2008 8:11 AM To: asterisk-users at lists.digium.com Subject: [asterisk-users] Newbie alert: VoIP hardware Hello, Please forgive me for i'm not an asterisk user yet. I've done as much research as I can .. and have the following questions. I'm setting up a new office and a home office and i'm shopping for hardware. Office: 2 analog lines Hardware: TDM412B (2 FXO, 1FXO) Link: http://www.voipsupply.com/index.php?cPath=99_555_556 Cost: $303 Home: 1 analog line Hardware: TDM421B (2 FXS, 1 FXO) Link: http://www.voipsupply.com/product_info.php?products_id=3980 Cost: $300 [2] Can I get PCI express x1 cards for the same price? I'm on budget, Any other cards (sangoma? rhino?) that might work well? I'm sure these questions have been asked before.. :-) Steve -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20080507/30e4dfba/attachment.htm
Steve Repo wrote:> Hello, > > Please forgive me for i'm not an asterisk user yet. I've done as much > research as I can .. and have the following questions. > > I'm setting up a new office and a home office and i'm shopping for > hardware. > > Office: 2 analog lines > Hardware: TDM412B (2 FXO, 1FXO) > Link: http://www.voipsupply.com/index.php?cPath=99_555_556 > Cost: $303 > > Home: 1 analog line > Hardware: TDM421B (2 FXS, 1 FXO) > Link: http://www.voipsupply.com/product_info.php?products_id=3980 > Cost: $300If you only have one analogue line why not just get a simple x100p card? When you use OSLEC with them they work great here in the UK. I bought my card from a USA based eBay seller. Total cost for card and shipping was about ?17.00> > Questions: > [1] Can I use oslec for echo cancellation? I'll have beefy hardware. > Is echo cancellation necessary?I would think you will always want to have EC. Whether you will need oslec or not is another matter. If the standard MG2 sounds crap, try oslec. MG2 couldn't deal with echo on my x100p. Oslec is pretty much perfect. I don't think you will need "beefy hardware" either. I have our Asterisk server running on a Via CN700 (1Ghz) along with lots of other applications. No troubles. Of course it is a home box and not heavily used but hey - the mobo only draws about 7W! If you want to know more about it see my sig below. There's a series of articles about setting up and building a home server with Asterisk and other bits and bobs. HTH Alan -- The way out is open! http://www.theopensourcerer.com
On Wed, May 7, 2008 at 10:22 AM, Steve Totaro <stotaro at totarotechnologies.com> wrote:> On Wed, May 7, 2008 at 9:40 AM, Tilghman Lesher > <tilghman at mail.jeffandtilghman.com> wrote: > > > > Note that purchasing Digium boards helps pay for full time Asterisk > > development, and purchasing clone boards does not pay for even a part-time > > Asterisk developer. > > > > -- > > Tilghman > > BTW, I am all for having payed Asterisk Developers but I think it is > needless to say that Asterisk would immediately see many more free > Devs or be forked (as it has for other reasons such as the dual > licensing) if Digium could not continue to provide in-house > development. > > I know that sounds harsh but it is the truth. > > Thanks, > Steve Totaro >Interesting results in Google for TDM400P TigerJet reference design. http://www.google.com/search?hl=en&safe=off&client=firefox-a&rls=org.mozilla:en-US:official&hs=h9P&pwst=1&sa=X&oi=spell&resnum=1&ct=result&cd=1&q=Tigerjet+Reference+design+tdm400p&spell=1 Other keywords turn up much more similar results that seem to confirm that the reference design from TigerJet was used. As with anything on the internet, take it with a grain of salt but it does have enough hits to raise questions. Thanks, Steve Totaro
A couple of years ago I started my "Asterisk carrier" with selling x100p cards and I think I sold around 100 of them in total to people who could actually contact me and new who I was. Yes, it is "a poor man solution" but at least it is a solution. And for "the poor man" it is the only thing available. The serious cards are not an option because they simply don't have the money to buy Digium, Sangoma or other professional stuff. I would never advice to use it in production situations but for testing and trying or when you simply don't have the money and want to become an Asterisk expert starting with an old PC and a X100P card it is good that these card is around. With some trying with the gains and the settings an x100p card can work pretty well. I have never got a card send back to me because the buyer was dissatisfied with the sound quality. I had a couple of dead on deliveries that where solved by sending an other card. A couple of times I had to assist with the settings to get it right. People are not stupid, they understand that a card priced EUR 20,- can't offer the same quaility as a card that cost EUR 100,- or even more. The same counts for the hfc isdn2 card. It certainly isn't perfect but for around ER 15,- you can't expect perfection. But it works, you can connect your isdn2 cable ad have inbound and outbound calls. I used the card on my own home asterisk for a long time. You can even connect 2 asterisk servers when setting the cards in different modes. For practicing and trying that is perfect because lots of people can not effort to spend EUR 1.500,- for two E1 cards and do the same trying with an ISDN30 connection between two boxes. I'm not advertising the use of this cards in production but we all should be glad that this cards are around and people who want to learn how to use and configure Asterisk can start with an old pc and a x100p card or an hfc isdn2 card. Starting with not the best hardware available is better then not starting because you have the impression that that is only possible after spending serious money on equipment. Erik de Wild Tripple-o Your Asterisk migration partner the Netherlands