[Asterisk-Users] FXO mode

[Richard Scobie]

Andy Powell wrote:
> 
> Can't find the message in a search.. but below is a msg retreved from my 
> archive..
> 
> this is what Mark sent a little while ago....
> I have no idea if it actually does anything to the card, but on a modprobe I 
> do get a msg saying it's using CTR21
> 
> Andy
>>I'm in Paris right now and can't test this change, but I've been
>>researching the DAA and there are a few international settings I can
>>change, so I've changed the driver in CVS so that you can specify
>>the operational mode.  Try "modprobe wcfxo opermode=1" if you're in most
>>of Europe and that should switch to CTR21 mode which slightly modifies a
>>few of the electrical characteristics of the DAA.
>>
>>As we add modes you'll be able to see them with "modprobe wcfxo
>>opermode=-1" and then doing a dmesg.
>>
>>Anyway all you folks that had some trouble like this try it out and let me
>>know if it makes any difference.
>>
>>Mark
>>

I guess in his haste to help out the people who were having a problem, 
Mark looked at the wrong data sheet when he wrote this patch.

I have corresponded with him and confirmed that this code requires the 
Global DAA chipset, which is not fitted to the current X100P cards.

The mail I was referring to is:
  http://lists.digium.com/pipermail/asterisk-users/2003-August/017825.html

Regards,

Richard