Hi Try the Voicetronix Openline 4, we found these to be the best so far! Cheers -----Original Message----- From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com]On Behalf Of Dorn Hetzel Sent: Tuesday, December 14, 2004 5:48 PM To: asterisk-users@lists.digium.com Subject: [Asterisk-Users] least sucky FXO interface? Would anyone care to offer opinions as to the FXO interface which sucks the least :) I have an application in which it appears I must route certain calls out an analog PSTN line. Presently, I am testing an SPA-3000, but I can't seem to get the echo heard on the IP end of the call down to a non-annoying level. Any suggestions welcomed :) -Dorn _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
On Tue, 14 Dec 2004 10:48:01 -0500, Dorn Hetzel wrote:> >Would anyone care to offer opinions as to the FXO interface which sucks >the least :) I have an application in which it appears I must route >certain calls out an analog PSTN line. Presently, I am testing an >SPA-3000, but I can't seem to get the echo heard on the IP end of the >call down to a non-annoying level. > >Any suggestions welcomed :)X101p clone = very profoundly sucky Sipura SPA-3000 = not quite so sucky Digium TDM400p = least sucky...at least for me Michael -- Michael Graves mgraves@pixelpower.com Sr. Product Specialist www.pixelpower.com Pixel Power Inc. mgraves@mstvp.com o713-861-4005 o800-905-6412 c713-201-1262
Would anyone care to offer opinions as to the FXO interface which sucks the least :) I have an application in which it appears I must route certain calls out an analog PSTN line. Presently, I am testing an SPA-3000, but I can't seem to get the echo heard on the IP end of the call down to a non-annoying level. Any suggestions welcomed :) -Dorn
On Tue, 2004-12-14 at 18:44 +0000, Jean-Michel Hiver wrote:> To the list: Am I right understanding that Fritz + BRI line = no echo > issues?I have two systems using AVM cards, one uses a C2 and the other 2 Fritz cards neither have any problems of echo. -- Dave Cotton <dcotton@linuxautrement.com>
On Tue, Dec 14, 2004 at 05:20:02PM +0100, Dave Cotton wrote:> On Tue, 2004-12-14 at 18:44 +0000, Jean-Michel Hiver wrote: > > > To the list: Am I right understanding that Fritz + BRI line = no echo > > issues? > > I have two systems using AVM cards, one uses a C2 and the other 2 Fritz > cards neither have any problems of echo. >Unfortunately, I cannot use a BRI for this part of my application, only analog :(
> Would anyone care to offer opinions as to the FXO interface which sucks > the least :) I have an application in which it appears I must route > certain calls out an analog PSTN line. Presently, I am testing an > SPA-3000, but I can't seem to get the echo heard on the IP end of the > call down to a non-annoying level. > > Any suggestions welcomed :)There's likely to be as many opinions on that as there are list readers. So, here's my 15 months of actual hands-on experience to date. :) - X100P cards: sort of okay in North America, but not so cool in any country that uses different telco standards. (Yes, there are several exceptions.) In NA, the code supporting the X100P is basically the same code that supports the TDM card. (eg, if you have a problem with one, you are very likely going to have the same problem with the other "in NA".) - TDM card: not all that bad at all. Still needs some help, but I'd suggest that a large percentage of negative postings is a reflection of the implementors ability to understand and address the issues, and not the card itself. (Yes, there are several exceptions here too.) Both the X100P and the TDM card are sensitive to what seem to be motherboard issues with pci bus and/or interrupt latency. - SPA3000: Not a lot different in terms of usability issues when compared to the TDM card. Some folks have echo issues with it while some don't. Some have complained about early failures, others not. Very sophisticated in terms of programability; more options that what most folks even begin to understand. (The last two/three software upgrades have improved the documented echo issues, but not totally.) - Mediatrix 1204 gateway: worked well, no echo, etc. But, that box does not conform to several sip standards and there is no real support for it other then from the company you bought it from. Mediatrix as a company seems to be in a financial bind and they've choosen not to support it directly, there is no guarantee that any problem will ever be addressed, and the mechanism required to make it play with * is very non-standard. There are no free upgrades; each upgrade is suppose to be chargable to the customer. - IAXy: I've not played with these, but reading the archives will point out various issues in certain environments. (E.g., no dns support, nat issues, few codecs supported.) The market for one-to-four fxo interfaces is rather immature and lacking overall. Those boxes that are reasonably priced seem to have issues of one sort or another, while the more expensive ones tend to have fewer issues but also fewer people using them (and documenting their concerns). So, is the lack of noise from the expensive ones really the result of a better implementation, or is it related to those cards have not been exposed to the negative situations that cheaper implementations have seen? No idea personally. (Not even going to comment on the T1 cards and muxes as they don't apply in the small 1-to-4 fxo shops.) Rich
Dorn Hetzel wrote:>Would anyone care to offer opinions as to the FXO interface which sucks >the least :) >So far, for me, using VoIP -> PSTN termination provider has been the solution which "sucked the least". My FXO card doesn't seem to work so well. Never tried my SIPURA as an FXO device though... I use it as an FXS and for that usage it gives me no echo. To the list: Am I right understanding that Fritz + BRI line = no echo issues? Cheers, Jean-Michel.