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

[C F]

On most phones one will only find 12 DTMF keys 0-9, and *#. However as
mentioned before A,B,C, and D is part of DTMF as implemented by the
U.S. military's Autovon phone network.
For more on this:
http://www.repairfaq.org/filipg/LINK/F_DTMF.html#DTMF_004



On Thu, 10 Feb 2005 09:54:46 -0700, Kevin P. Fleming
<kpfleming at starnetworks.us> wrote:
> 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 :-)
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