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

[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).

How can I switch EC off for an ISDN B-channel if a fax is coming in?

Z.