2009/9/4 Vinícius Fontes <[email protected]> > No it's not a fact of life. VoIP works as fine as conventional telephony > once it's correctly set up. > > Try echocancel=256 instead of echocancel=yes and also run fxotune (check > the man page). If that all fails, install OSLEC. It's an excellent free > software echo canceller, that works much better than Asterisk's default MG2. > > > > Vinícius Fontes > www.asteriskforum.com.br - Informações e discussão sobre Asterisk e > telefonia IP > > ----- "Jason Baker" <[email protected]> escreveu: > > > Well I tried Doug's suggestion and the echo is now better, but when I > > call an outside analog line I still get some echo. I can hear my voice > > in the ear piece of the phone with a slight delay. Is this just a fact > > of life with VoIP, or is there a better way to reduce line echo? > > > > Again, for reference, I am using the VPMADT032 echo cancellation > > module attached to a Digium TE121 PCI express card. The incoming phone > > service is a PRI. > > > > > > > > Jason Baker > > IT Coordinator Glastender, Inc. > > 5400 North Michigan Road > > Saginaw, Michigan 48604 USA > > Phone: 989.752.4275 ext. 228 > > Fax: 989.752.4276 > > www.glastender.com > > > > Doug Lytle wrote: > > > > Jason Baker wrote: > > > > language = en > > > > group = 1 > > echocancel = yes > > echotraining = yes > > signalling = pri_cpe > > switchtype = 4ess > > usecallerid = yes > > context = incoming > > channel => 1-23 Just noted that your system is out of Saginaw. The > > system below is out > > of Livonia, with an AT&T PRI as well. Note the rx/txgain entries, it > > may be useful as well: > > > > > > switchtype=national > > context=pri > > signalling=pri_cpe > > echocancel=yes > > echotraining=yes > > echocancelwhenbridged=yes > > rxgain=-1.0 > > txgain=-4.0 > > Just curious. Have you tried turning off all echo can? I RARELY need echo can on T-1.
I was also under the impression that rx/tx gain was only for POTS lines. -- Thanks, Steve Totaro +12409381212 (Cell) +12024369784 (Skype)
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