[asterisk-dev] DAHDI / indications: US tone as stutter on India, Mexico, and the Philippines

[Richard Mudgett]

On Sun, Jan 26, 2014 at 7:44 AM, Tzafrir Cohen <tzafrir.cohen at xorcom.com>wrote:

> Hi,
>
> A while ago we noticed while testing that if you set the tonezone of a
> DAHDI phone to Mexican ("mx"), a phone with a message waiting eventually
> gives a US dialtone after the stutter tone is over. This is because in
> zonedata.c:
>
>           .country = "mx",
> ...
>                         { DAHDI_TONE_DIALTONE, "425" },
> ...
>                         { DAHDI_TONE_STUTTER,
> "!350+440/100,!0/100,!350+440/100,!0/100,!350+440/100,!0/100,!350+440/100,!0/100,!350+440/100,!0/100,!350+440/100,!0/100,350+440"
> },
>
> As you can see, it ends with the tones 350+440, the same as the US
> dialtone. I suspect that this is copy&paste from the "us" definition.
>
> A quick look at the file shows that the India (in) and Philipines (ph)
> definitions have the same issue. It's the same in indications.conf.
>
> Asterisk's indications.conf gives [1] as a reference to some country's
> indications data. That file does not have information about voicemail
> indication tone for Mexico.
>
> Is this a problem or is this the expected behaviour? A quick search
> found no results.
>
> [1] http://www.itu.int/ITU-T/inr/forms/files/tones-0203.pdf
>

Since the stutter tone is not defined by the standard but is a dialtone, I
think it should
stutter the same tones as the country specific dialtone.  At the very least
it should stop
stuttering and become a normal dialtone.

Richard
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