Michael Graves
2004-Aug-16 07:15 UTC
[Asterisk-Users] local echo using SPA-3000 as FXO port
Hi All, Last week I started hearing a huge amount of local end echo on incomming calls. I am using a Sipura SPA-3000 as my FXO connected to an SBC POTS line. Echo cancellation is enabled in the SPA firmware. As a test I switched to a Digium X100 card the still lives in my server but the echo was about the same. I have both Polycom IP600 and SNOM 200 phone, which both hear the echo. I'm running CVS-Head 07/09/2004. Any suggestions as to what would could eliminate the problem. Thanks, Michael Graves -- 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 "People said that there is no economic model for it, but there is: the economic model of flower boxes...I put out flower boxes to raise my self esteem and make my house more attractive. If almost everyone does then the whole town becomes beautiful. The same thing can happen with communications." - Nicolas Negroponte ** Tag(s) inserted by Bandit Tagger98 - http://www.gbar.dtu.dk/~c918704
Wolfgang S. Rupprecht
2004-Aug-17 13:24 UTC
[Asterisk-Users] local echo using SPA-3000 as FXO port
mgraves@mstvp.com (Michael Graves) writes:> Last week I started hearing a huge amount of local end echo on > incomming calls. I am using a Sipura SPA-3000 as my FXO connected to an > SBC POTS line. Echo cancellation is enabled in the SPA firmware.Same here with my SBC line. The other gripe is that the talk path "PSTN -> FXO -> asterisk -> grandstream_bt100" is very high delay. Enough so that it is very annoying to use it. -wolfgang -- Wolfgang S. Rupprecht http://www.wsrcc.com/wolfgang/ openbsd amd64 http://www.wsrcc.com/wolfgang/ftp/asterisk-openbsd35.patch