[VoIP] Ernest Telecomm 7D-3 Payphone
Steph Kerman
stfkerman at jps.net
Sat Aug 25 22:21:28 CDT 2007
Don,
What kind of MCU does it have? Is there external or on-chip program
memory? What date codes do you find?
Steph
Donald Froula wrote:
> I found it on Ebay. It was local, so for 80.00, it
> seemed worth a gamble as there was no shipping.
>
> It is completely line powered. There is only a small
> nicad on the board for backup of some kind. It works
> fine. It asks for .35/min for 7 digit calls and 2.35
> for 65 minutes to ANY US 10 digit number. It dials an
> 800 number when dialing 0 or 00 to access operator
> services. That works too.
>
> It gives a phony dial tone. When I finish dialing and
> it is asking for money, I can faintly hear it quickly
> redial the first 3 numbers of what I dialed, then
> slowly dial the remainder of the number while it waits
> for coins. Depositing the correct coins makes it
> quickly finish dialing. I guess that's to hold the
> line against an incoming call.
>
> It came with two housing keys, two coin box keys, a
> T-wrench, a coin box and a mounting plate. It is in
> very nice shape.
>
> I had found that parts list. I'll give them a call
> Monday to see what they have to offer.
>
> There is a sticker on the board that says in
> handwriting "DP002284". I was guessing it meant "Dial
> Programming" and an access code. I tried punching that
> in dozens of ways with the program switch thrown, but
> no joy.
>
> Throwing the program switch makes it go off hook and
> go into a mode where one can dial with the receiver
> on or off hook. Dialing * or # plus two digits
> disables the keypad for a second, but no beeps, voice,
> or feedback of any kind. Oh, the first time a key is
> pressed in program mode, it gives a vey quick
> single-tone beep before playing the DTMF of the key.
>
> It does answer an incoming call with a 300-baud modem
> tone after 8 rings.
>
> The owner did not have a manual.
>
> Don
>
> --- Jayson Smith <ratguy at insightbb.com> wrote:
>
>
>> Hi,
>>
>> After doing a bit of searching, I found this
>> URL that lists lots of
>> parts and ordering information
>> http://www.ernesttelecom.com/parts.htm
>> The manual costs $10. They don't seem to have much
>> of a main website. I have
>> not yet found the manual available in any electronic
>> form.
>> Just curious, what's it programmed like? Where'd you
>> get it, and how much
>> did it cost you? Maybe you have to enter a pin code
>> in order to program it.
>> In this case, there may be a default specified in
>> the manual, or the
>> previous owner may have set one.
>> Hope this helps.
>> Jayson
>>
>> ----- Original Message -----
>> From: "Donald Froula" <dfroula at sbcglobal.net>
>> To: <voip at lists.ckts.info>
>> Sent: Saturday, August 25, 2007 7:57 PM
>> Subject: [VoIP] Ernest Telecomm 7D-3 Payphone
>>
>>
>>
>>> I picked up an Ernest Telecomm 7D-3 single-slot
>>>
>> COCOT
>>
>>> payphone today. There is a programming switch on
>>>
>> the
>>
>>> board in the phone that seems to put the keypad in
>>> programming mode, but I get no voice prompts or
>>>
>> any
>>
>>> other indication, other than DTMF when I press the
>>> keys.
>>>
>>> The board is labeled "Ernest D3".
>>>
>>> Does anyone have programming instructions for this
>>> beast?
>>>
>>> Thanks,
>>>
>>> Don
>>> --- Steph Kerman <stfkerman at jps.net> wrote:
>>>
>>>
>>>> Mark,
>>>>
>>>> Do you have the detailed description of the 1D
>>>>
>> type
>>
>>>> CTS?
>>>>
>>>> Steph
>>>>
>>>> Mark Rudholm wrote:
>>>>
>>>>> Steph Kerman wrote:
>>>>>
>>>>>
>>>>>> Mark Rudholm wrote:
>>>>>>
>>>>>>
>>>>>>> Something I've noticed with my D phones is
>>>>>>>
>> that
>>
>>>> they mute the coin
>>>>
>>>>>>> tones much more than my C phones.
>>>>>>>
>>>>>>>
>>>>>> I noticed recently that the coin maintenance
>>>>>>
>>>> practice specifically says
>>>>
>>>>>> the Ds mute completely and the Cs not.
>>>>>>
>>>>>>
>>>>> If you're in a quiet place, you can hear the
>>>>>
>> coin
>>
>>>> tones on a D
>>>>
>>>>> set, but just barely. I assume it's
>>>>>
>> unintentional
>>
>>>> (like the
>>>>
>>>>> slight amount of pulse clicking you can hear
>>>>>
>> on
>>
>>>> most rotary
>>>>
>>>>> phones despite the receiver being "muted").
>>>>>
>>>>> If you know of a way to change the "muting" to
>>>>>
>>>> something more
>>>>
>>>>> like the attenuation applied by touch-tone
>>>>>
>> dials
>>
>>>> when sending
>>>>
>>>>> DTMF signals, I'd be interested. Presumably
>>>>>
>>>> there's a switch
>>>>
>>>>> opening somewhere in the phone that could be
>>>>>
>>>> defeated with a
>>>>
>>>>> jumper or resistor (non-permanently).
>>>>>
>>>>>
>>>>>
>>>>>>> There are some other minor differences. For
>>>>>>>
>>>> example, if you put a coin
>>>>
>>>>>>> into a C phone while it is on-hook, the
>>>>>>>
>> phone
>>
>>>> will pause and then
>>>>
>>>>>>> return it. If you do that on a D phone, the
>>>>>>>
>> coin
>>
>>>> will sit on the
>>>>
>>>>>>> hopper until you go off-hook and then
>>>>>>>
>> on-hook.
>>
>>>>>> That's interesting. Never noticed. I have C
>>>>>>
>> and
>>
>>>> E sets but haven't
>>>>
>>>>>> played with them much. I'd like to have an A
>>>>>>
>> too
>>
>>>> but so far don't.
>>>>
>>>>> I'd like to have an un-modified three-slot.
>>>>>
>>>> Unfortunately,
>>>>
>>>>> those don't seem to exist anymore.
>>>>>
>>>>>
>> _______________________________________________
>>
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>>>>>
>>>>>
>>>>>
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>
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