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>

Direct: (929) 477-2085

Website: www.telego.com <http://www.telego.net/>

<http://www.telego.com/>

Confidentiality Notice: This e-mail may contain confidential and/or privileged information. If you are not the intended recipient or have received this e-mail in error please notify us immediately by email reply and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. Any views or opinions presented in this email are solely those of the author and do not necessarily represent those of TeleGo (T). Employees of TeleGo are expressly required not to make defamatory statements and not to infringe or authorize any infringement of copyright or any other legal right by email communications. Any such communication is contrary to TeleGo policy and outside the scope of the employment of the individual concerned. TeleGo will not accept any liability in respect of such communication, and the employee responsible will be personally liable for any damages or other liability arising.

TeleGo Hosted PBX <https://youtu.be/DaT8YAZ4V0w> _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops

-- Kent Adams Vice President of NextGen Network Operations and Development BCM One NextGen Communications Group