[Asterisk-Dev] rtp.c Issue

[Tais M. Hansen]

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On Wednesday 07 April 2004 15:50, Andrew Kohlsmith wrote:
> > Increase amount of time we send tones on RTP to 100ms
> That still seems awfully short.  100ms?  1/10 of a second?  Jeez I am all
> for efficiency in communications but this seems awfully short, especially
> if we have to talk to all manner of marginal equipment out there.
> My uneducated (but engineering-based) sugestion would be in the 250ms
> range. It's still short enough not to be annoying but long enough that it's
> a dog's age in terms of electronic equipment.

It may seem short, but as you can read from the bug report I posted a while 
ago, the ITU specifications says 40ms should be enough for an analog device 
to detect and recognize a DTMF tone. Asterisk was way shorter than that at 
the time of the bug report.

http://bugs.digium.com/bug_view_page.php?bug_id=0001024

- -- 
Regards,
Tais M. Hansen
ComX Networks
Tel: +45-70257474
Fax: +45-70257374

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