[asterisk-users] DID/CID doesn't match "." (dot) in CID field

[Richard Kenner]

> >   exten => _test.,1,Goto(some_context,${FILTER([a-z][0-z],${EXTEN})},1)
> >
> > I think there's some sort of bug or misfeature here, but I gave up trying
> > to see exactly what it was.
> 
> That filter line probably does not do what you think it does.  I would
> suggest checking the documentation.

Oops, yes, I meant:

      FILTER(a-z0-9,...
It did the trick.