I forgot about the levels. One thing that really helps is lowering the "to PSTN" gain. Unfortunately, you may find that to reduce echo to a tolerable level you will need to reduce the gain so low that the called party may have a hard time hearing you. I think I dropped the gain values by 4 dB.
Bob... On Sun, 2006-11-05 at 21:55 -0500, Doug Crompton wrote: > Yes I agree, the SPA3000 can be a bear with echo on the PSTN. I did find > that using older fimware helped some and that the levels - there are 4 > settings - FXO/FXS in/out can be juggled to help. I also found out after > adding a Budgetone 200 that I had much less echo problem going through it > and the spa3000 FXO - vs. using the local analog phones on the spa3000 fxs > port to FXO port. So some of the answer might be to get rid of as much (or > all) local analog as you can. I plan to buy more hard sip phones and do > that here eventually. This is ultimately more flexible as each extension > has it's own number and they can dial each other as well as dial more then > one place simutaneously. The big problem is that SIP phones are generally > ugly and black and not styled for home use. > > Doug > > On Sun, 5 Nov 2006, James Harper wrote: > > > In my seemingly endless search for the cause of echo on my SPA3000, I > > wired it up in the following configuration: > > > > Analogue Handset <--> (FXS)SPA3000(FXO) <--> PAP2 > > > > And set the Line1 dialplan on the SPA3k to '(<:@gw0>S0)' which means > > that as soon as I pick up the handset I get linked straight through to > > the PAP2, which gives me dialtone. > > > > Even in this configuration, with my impedance settings set to the > > Australian standard of 220+820||120nf, and the PSTN and PAP2 echo > > cancellers enabled (or not, and all combinations of) I get local echo as > > soon as I pick up the handset (I hear my voice bounced back to me). > > Surely this shouldn't be??? There is no hybrid involved at all! > > > > If anyone on this list with a SPA3k (that doesn't have any local echo > > problems on the PSTN port) and an ATA with a FXS port, could they please > > try the above setup and post the results (including SPA3k hardware and > > firmware versions, and the ATA used)? I wonder if there is a problem > > with some versions of the SPA3k where there is some sort of inbalance on > > the PSTN port that causes echo right there rather than further down the > > line? > > > > Thanks > > > > James > > > > _______________________________________________ > > --Bandwidth and Colocation provided by Easynews.com -- > > > > asterisk-users mailing list > > To UNSUBSCRIBE or update options visit: > > http://lists.digium.com/mailman/listinfo/asterisk-users > > > > > "Those that sacrifice essential liberty to obtain a little temporary safety > deserve neither liberty nor safety." -- Ben Franklin (1759) > > **************************** > * Doug Crompton * > * Richboro, PA 18954 * > * 215-431-6307 * > * * > * [EMAIL PROTECTED] * > * http://www.crompton.com * > **************************** > > > _______________________________________________ > --Bandwidth and Colocation provided by Easynews.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
