[Freeswitch-users] Does OpenZap support CTR21?

[Michael Jerris]

This would be specific to the zaptel driver for that card, not openzap.

mike

On Nov 5, 2009, at 1:43 PM, Fred-145 wrote:

>
> Hello
>
> As an alternative to more expensive alternatives like OpenVox or  
> Sangoma,
> I'd like to order an X100P clone from www.x100p.com for use in France.
>
> According to a PDF on the site, the reason this card gets bad  
> reviews is
> that "the Silicon labs Si3012/Si3035 DAA chip used in the original  
> Digium
> X100P card and low cost X100P clone cards only supports FCC mode.  
> However,
> the Si3014/Si3034 DAA chip used on the X100P SE supports global line
> standards."
>
> As for software, "the Silicon labs Si3014/Si3034 DAA chip used in  
> the X100P
> SE supports 600 Ohm impedance and complex impedance to meet CTR21 line
> standards. However, the Zaptel wcfxo driver only supports CTR21 mode  
> with
> 600 Ohm AC termination, which may or may not be the correct setting
> depending on the country and the phone system in use."
>
> So... does someone know if OpenZap, which is apparently required in  
> addition
> to Zaptel/Dahdi for FreeSwitch to work PCI TDM cards, supports CTR21?
>
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