<div dir="ltr">Hi Matt,<br><br> Thanks, appreciate the info.<br><br>Nir S<br><br><div class="gmail_quote">On Sun, Jun 28, 2009 at 5:01 PM, Matt Florell <span dir="ltr"><<a href="mailto:astmattf@gmail.com">astmattf@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hello,<br>
<br>
One of our clients uses "A" quite a bit internally, the Zoiper<br>
softphone has it right in the key-pad, and they use it for internal<br>
extensions like voicemail and timeclock applications through Asterisk.<br>
As for the others, I have heard of success with B and C, but some<br>
issues with the D key in Asterisk.<br>
<br>
As a side note, these DTMF signals have been around for decades, most<br>
telco infrastructure equipment supports these signals, and you can<br>
find very old linesman's handsets that have the A-D row of buttons on<br>
them.<br>
<br>
<a href="http://en.wikipedia.org/wiki/Dtmf#.23.2C_.2A.2C_A.2C_B.2C_C.2C_and_D" target="_blank">http://en.wikipedia.org/wiki/Dtmf#.23.2C_.2A.2C_A.2C_B.2C_C.2C_and_D</a><br>
<br>
MATT---<br>
<div><div></div><div class="h5"><br>
On 6/28/09, Nir Simionovich <<a href="mailto:nir.simionovich@gmail.com">nir.simionovich@gmail.com</a>> wrote:<br>
> Hi All,<br>
><br>
> I've been asked by a prospect if Asterisk can handle the additional DTMF<br>
> signals that<br>
> may be produced by some emergency systems. According to the DTMF standard,<br>
> there are 4 additional tones that can be generated, however, these are not<br>
> used in most<br>
> phones.<br>
><br>
> Can these be intercepted by Asterisk?<br>
><br>
> Nir Simionovich<br>
><br>
><br>
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