[Asterisk-Users] Echo - UK Impedance problem with X100P?

[Soren Rathje]

Rich Adamson wrote:

[snip]

>
> For those that would like to play around with the above, might take
> a look at zaptel/fxstest.c (and the associated Makefile complile
> options) as it can be used to modify/view the tdm04b chip parameters.
> I'm not a programmer, but doubt whether it would take much to
> modify it to exercise the cards noted above.
>

[snip]

UK is a CTR21 country and after having a closer look at the wcfxo.c code it
is supported *if* the card have the global chipset (Clone only, I believe).

To enable CTR21 you have to modprobe/loadmod/whatever the wcfxo driver with
the parameter 'opermode=1'.

/Soren