Re: Touch Tone Charges - Bell Canada Still Charges Extra $2.80 a month [Telecom]
- From: hancock4@xxxxxxxxxxxx
- Date: Fri, 19 Jun 2009 12:43:13 -0400 (EDT)
On Jun 18, 11:25 pm, jwillis <jwillis.removet...@xxxxxxxxxxxx> wrote:
These days, pulse dialing costs more, because they have to stick an
additional 'pulse to DTMF converter' on the front of the line before
the call hits the DTMF-only switch.
There is considerable suspicion that no such "pulse to DTMF" converter
exists. A telephone switch must respond to DC signals (pulses)
because the hookswitch sends DC, so responding to DC pulses (such as a
subscriber flashing) is an integral part of the switch function.
Touch Tones are not digital, and must be converted into a form the
switch computer understands. Accordingly, there is no evidence that
pulse costs more. There's a separate ongoing long discussion in this
newsgroup on this issue you may wish to review. If you have technical
literature describing the "pulse to Touch Tone converter", could you
cite the book?
Bell has grandfathered all rotary dial lines - if you dont move you
dont have to pay the $2.80 a month for Touch-Tone, they put a filter
on the line so that Touch-Tone will not dial out. If you move then
Bell will start charging the $2.80 extra a month.
I do not think any "filter" is added to the line. Rather, the switch
software merely ignores Touch Tone signals from that subscriber. It's
no different than if you attempt to flash to get 3-way calling but
your line is not equipped for that, when you flash, nothing happens.
.
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