[VoIP] Question on connecting old dial telephone
Steph Kerman
stfkerman at jps.net
Sun Sep 30 20:13:49 CDT 2007
In principle that is what DP-SF is for - dial pulsing over a voice
frequency connection that cannot pass DC pulsing. How well it would
work vis-a-vis lost or mangled pulses due to drop outs depends entirely
on the quality of the VF connection between the two points.
Steph
Greg Blakely wrote:
> Yes, it is 'hotline' capable. It's what I use for my candlestick phone.
> It would be possible to do a ringdown to a trunk, with no digits dialed.
> That'll give you dial tone, but I don't think that it is possible to
> then pulse dial across the connection into the seized trunk. Touchtone
> works, but pulse??? I don't imagine that it would.
>
> Anyone know for sure?
>
>
>> -----Original Message-----
>> From: voip-bounces at ckts.info [mailto:voip-bounces at ckts.info]
>> On Behalf Of Duncan Smith
>> Sent: Sunday, September 30, 2007 7:58 PM
>> To: CNET List
>> Cc: Phil Braverman
>> Subject: Re: [VoIP] Question on connecting old dial telephone
>>
>>
>> Isn't it possible to have Asterisk place a call immediately
>> on off-hook? I don't know if they're using Asterisk, but on
>> the front desk at one of my local hospitals is a set which,
>> when picked up, puts the caller directly into a queue to
>> speak to an operator. I would think that such a use (as a
>> "hot-line") would be rather common.
>>
>
>
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