[Asterisk-Users] TDM400P & Channel Group

[Adam Goryachev]

On Wed, 2005-06-22 at 21:59 -0700, George Pajari wrote:
> Adam Robins asked:
> 
> >Shouldn't [Asterisk] be smart enough to go to Zap/4 as the only available
> >port in the group [with a live trunk]?
> >  
> >
> Adam Goryachev wrote:
> 
> >No, asterisk doesn't do dialtone detection.
> >
> But this isn't an issue of dialtone detection but one of detecting 
> battery (a much easier task). Shouldn't (doesn't) Asterisk check for 
> battery on an FXO port before using the port? Shouldn't this be an 
> option? (Sorry but I haven't the time to look at the code not to mention 
> think about adding this if it isn't already there.)

Nope, asterisk doesn't do that either. I think from memory that running
zttool will show a red alarm on a FXO channel which does not have the
line physically connected... so if I am right, there is some support
already in-place for this at zaptel layer, but not at asterisk layer...

Regards,
Adam