[asterisk-users] Generating an old-fashioned dialtone

[Stephen Bosch]

Phil Reynolds wrote:
> On Wed, Sep 12, 2007 at 11:23:51AM -0600, Stephen Bosch wrote:
>> It's been years since I was in the UK. I can't remember what the modern
>> dial tone sounds like. When did it change?
> 
> The first version of it appeared in parts of Sutton Coldfield in 1976,
> but some places still had the old tone into the 1990s. The modern one is
> of a slightly higher pitch than the 1976 version. Much of Europe uses a
> similar tone. The "secondary" dial tone in France (that followed use of
> 19 when that was the International prefix) was quite similar too.

The German dialtone is a single frequency with no beat, which would
sound very different from the aforementioned tone only with a higher
pitch...

-Stephen-