At one time, the A, B, C, and D tones were used by the Autovon network for
prioritization of calls. ref: Silver Boxes
https://www.sigidwiki.com/wiki/Dual_Tone_Multi_Frequency_(DTMF)
I don't have any experience with Automatic Call Distributor systems so I can't
verify this, but those four extra tones were also used back in the day for
managing
multi-party calls. Thinking about the structure of those systems, though, it
seems
plausible.
https://www.tech-faq.com/abcd-tones.html
There are mutiple refs out there backing up statements in other posts about
their
being used to handle autopatches and repeater management.
--
The Doctor [412/724/301/703/415/510]
WWW: https://drwho.virtadpt.net/
Don't be mean. You don't have to be mean.
------- Original Message -------
On Saturday, August 19th, 2023 at 14:07, K0LNY <[email protected]> wrote:
> Hi John,
> There are 4 keys to the right of the traditional number pad, right of 3, 6,
> 9, and #.
> I think they are labeled A B C & D.
> I don't know what they are for.
> Thanks.
> ----- Original Message -----
> From: [John Mehl](mailto:[email protected])
> To: [Discussion of CHIRP](mailto:[email protected])
> Sent: Saturday, August 19, 2023 3:57 PM
> Subject: Re: [chirp_users] Tyt 9800 Buttons
>
> The telephone keys a,b,c,d,and * and # are defined by the telephone company
> for use in special signaling combinations.
>
> On Sat, Aug 19, 2023 at 4:08 PM K0LNY <[email protected]> wrote:
>
>> Thanks, what are they for? they aren't the numbers, they are right of the
>> numbers.
>> Glenn
>> ----- Original Message -----
>> From: [John Mehl](mailto:[email protected])
>> To: [Discussion of CHIRP](mailto:[email protected])
>> Sent: Saturday, August 19, 2023 6:48 AM
>> Subject: Re: [chirp_users] Tyt 9800 Buttons
>>
>> Glenn those 4 keys are the same as a telephone, the lettera a-d. They are
>> not programmable...
>>
>> On Fri, Aug 18, 2023 at 10:42 PM K0LNY <[email protected]> wrote:
>>
>>> Hi All,
>>> In the Chirp settings page, I was able to program the four programmable
>>> buttons on the microphone, using a screenreader in windows 10 and Chirp
>>> Next, but I did not notice if there was anything in Chirp Settings tab for
>>> the four vertical buttons to the right of the numberpad on the microphone.
>>> Are those programmable buttons, or are they for something else?
>>> I cannot read the buttons, and I didn't find any reference in the manual
>>> that was readable with a screenreader as what these buttons are.
>>> Can anyone tell me if they are programmable or not, and what they do?
>>> The vertical buttons do nothing, but sometimes the top one beeps once, and
>>> after that, there is nothing from the buttons.
>>> Thanks.
>>>
>>> Glenn
>>>
>>> A man with a clock always knows what time it is.
>>> A man with two clocks is never sure.
>>> -- A derivative of Segal's law
>>> _______________________________________________
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>>
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>
> ---------------------------------------------------------------
>
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