No dial command

Peter Brigham MD pmbrig at
Wed Feb 2 08:11:04 EST 2011

On Feb 1, 2011, at 5:29 PM, DunbarX at wrote:

> HC sends DTMF tones with the "dial" command through the speaker jack.
> These can connect to a dialer gadget called a "TurboDialer", which  
> connects to a
> telephone handset.
> Nothing like that in LC at all? Never mind the hardware.
> It is actually possible to   make calls that way by holding the  
> receiver up
> to the computer speaker.
> Shades of Captain Crunch.

I used this in an old HC stack. When I joined my current group  
practice I discovered that the modern phone system here (apparently a  
LAN with its own server, all self-contained) wouldn't recognize the  
tones played through the receiver. So I retired that feature. The loss  
is now somewhat mitigated by my being able to use voice-activated  
dialing on my iPhone....

-- Peter

Peter M. Brigham
pmbrig at

It was all so different before everything changed.

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