How do I match a "D"? (Was: RE: [Asterisk-Users] In-band disc onn ect problem (legacy PBX) - asterisk doesn't hear the touchtone?)

[Kevin P. Fleming]

Steven Critchfield wrote:

> You should end up with invalid just like if you pressed a 1 without a
> extension or pattern matching the 1.

Yeah, you're right, I was thinking of when the context doesn't contain 
an "i" extension either. Never mind :-)