[Asterisk-Users] debug channel <n>

[TC]

> I can't get the "debug channel" command to work.  In each case * 
> responds with "No such channel ...".  I've tried:
> debug channel 1
> debug channel Zap/1
> debug channel Zap/1-1
> debug channel 25
> debug channel Zap/25
> debug channel Zap/25-1
I beleive you have to have the channels in use (as per show channels)
AND on zap devices include the span number eg Zap/1-1
that how it works here