Re: [asterisk-users] b410p + fax (echo cancellation)

2007-02-23 Thread Steve Underwood
Zoilo Gomez wrote: I really don't get it From several emails in this list archive, I had clearly understood that it is important to switch Echo Cancellation off for fax-channels, or faxing would not work properly. However, faxing (B410P ISDN bridged to TE410P PSTN) seems to work fine w

Re: [asterisk-users] b410p + fax (echo cancellation)

2007-02-23 Thread Andrew Kohlsmith
On Friday 23 February 2007 8:35 pm, Zoilo Gomez wrote: > However, faxing (B410P ISDN bridged to TE410P PSTN) seems to work fine > with EC at 256 taps on the B410P. Generally speaking all modems (this includes POS machines and faxes) emit a tone which echo cancellers recognize and disable themselv

Re: [asterisk-users] b410p + fax (echo cancellation)

2007-02-23 Thread Lee Howard
Zoilo Gomez wrote: I really don't get it From several emails in this list archive, I had clearly understood that it is important to switch Echo Cancellation off for fax-channels, or faxing would not work properly. However, faxing (B410P ISDN bridged to TE410P PSTN) seems to work fine

Re: [asterisk-users] b410p + fax (echo cancellation)

2007-02-23 Thread Zoilo Gomez
I really don't get it From several emails in this list archive, I had clearly understood that it is important to switch Echo Cancellation off for fax-channels, or faxing would not work properly. However, faxing (B410P ISDN bridged to TE410P PSTN) seems to work fine with EC at 256 taps o

[asterisk-users] b410p + fax (echo cancellation)

2007-02-22 Thread Zoilo Gomez
We have recently purchased a B410P Digium 4* ISDN-2 card with hardware EC. On the same server, I also have a regular Digium 4-channel PSTN-card (TDM410P ?), used to interface to some analog devices, a.o. 2 fax machines. For faxing, EC needs to be off (or so I understand from the archives). Ho