[VoiceOps] Digium / Switchvox DMTF issue

[Kent Adams]

Izzy,

Looking at the changelogs for Digium there isn't anything obvious, but the
changelog for the Asterisk project does suggest a change in the default
minimum duration setting for DTMF detection in recent releases (
https://github.com/asterisk/asterisk/blob/master/CHANGES). I would suggest
configuring the AdTran's dtmf-relay min-duration higher, since the Asterisk
min duration default can range between 80 and 100 depending on release, it
seems to me that changing the AdTran's min-duration setting to 120 should
do the trick, if indeed that's what you are running into.

Good Luck,

Kent

On Tue, Feb 23, 2021 at 8:20 AM Izzy Goldstein - TeleGo <
igoldstein at telego.net> wrote:

> i have a few Customers using Digium Servers
>
>
> we noticed on our installations when we upgraded their server to 7.2 and
> above
>
> the client starts reporting DTMF issues (DTMF is not recognized by the
> system)
>
>
> i have time troubleshooting this with Digium and with Adtran, they both
> point fingers at each other
>
>
> this issue only starts once upgrading the digium server to the new updates
> of 7.2 and above (even on the latest version 7.6.2)
>
>
> has anyone else experienced the same - what was the fix?
>
>
> I was told Asterisk updated the module that's responsible for DTMF ? and
> maybe that's where the issue is ?
>
> --
>
> Izzy Goldstein
>
> Chief Technology Officer
>
> Main: (212) 477-1000 x 2085 <(212)%20477-1000>
>
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-- 
Kent Adams
Vice President of NextGen Network Operations and Development
BCM One NextGen Communications Group
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