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
