[asterisk-users] Is this bad hardware? Dahdi-v-X100 clone

[listuser at spamomania.co.uk]

On Mon, 2009-12-14 at 22:27 +0200, Tzafrir Cohen wrote:
> On Mon, Dec 14, 2009 at 02:17:39PM -0300, Vinícius Fontes wrote:
> > I have never used that card myself, but I have never seen an analog 
> > board reporting a RED alarm.
> 
> Ahem. Wcfxo always has (AFAIR). "Red alarm" means that no line is
> connected (it gets no current from the remote FXS in the central
> office).
> 
> Later on most DAHDI drivers of FXO ports started to use this signalling
> (though for the specific port rather than for the whole span).
> 
> If you connect a standard analog phone instead of that card and get a
> dial tone, something is fishy with the card (or the driver) as it is
> mis-reporting.
> 
It turned out to be an issue with DAHDI. Once the signalling was added
to the conf and an incoming call was made, the status shifted to OK.
This may suggest the driver was failing to detect the line status from
the card - but as it is a 'clone/unsupported' there is little point
being concerned about it :-)