# Voice Notification - Could not find compatible locale for language code 'en\_US'

**URL:** <https://forum.inductiveautomation.com/t/voice-notification-could-not-find-compatible-locale-for-language-code-en-us/116592>\
**Category:** Ignition\
**Created:** [July 30, 2026, 6:18pm UTC](https://forum.inductiveautomation.com/t/voice-notification-could-not-find-compatible-locale-for-language-code-en-us/116592 "2026-07-30T18:18:08Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Gwen\_Lipinski](https://avatars.discourse-cdn.com/v4/letter/g/c77e96/32.png) [@Gwen\_Lipinski](https://forum.inductiveautomation.com/u/Gwen_Lipinski)\
**Post date:** [July 30, 2026, 6:18pm UTC](https://forum.inductiveautomation.com/t/voice-notification-could-not-find-compatible-locale-for-language-code-en-us/116592/1 "2026-07-30T18:18:08Z")

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Hello! I am trying to get voice notifications via VoIP. I am using VoIP.ms service and it says it is successfully registered. When I toggle on an alarm, the log gives an error of: Could not execute notification job NotificationJob[id=NJob\_6, users=1, events=1], the delivery media system was not available. Details: Could not find compatible locale for language code 'en\_US'. I've tried other English language settings on my user. Attached are screenshots of our setup. We installed Katherine voice notification and have an active license. Any idea why I am getting this error?

 ![Screenshot 2026-07-30 130115](https://us1.discourse-cdn.com/inductiveautomation/original/3X/3/2/324896138642ce56ac39a3ab52157945299d8226.png)

 ![Screenshot 2026-07-30 130057](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/f/ffcda7dc094ca2068e46779dbcbb5f2eb0ab2561.png)

 ![Screenshot 2026-07-30 130033](https://us1.discourse-cdn.com/inductiveautomation/original/3X/5/1/51f2097ed0ac1bc8ea2fdad5bb8f42acf4b7ac2b.png)

 ![Screenshot 2026-07-30 130020](https://us1.discourse-cdn.com/inductiveautomation/original/3X/b/5/b543dc22c0c9b042069335737b5910c41bfc1402.png)

 ![Screenshot 2026-07-30 124451](https://us1.discourse-cdn.com/inductiveautomation/original/3X/d/2/d2a98ff4e886813b9953a9f094b07595613b04e7.png)

 ![Screenshot 2026-07-30 130136](https://us1.discourse-cdn.com/inductiveautomation/original/3X/6/1/611fc594843a820c16016d66ff1a042699c2bbfb.png)

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<div class="post-metadata">

**Author:** ![Gwen\_Lipinski](https://avatars.discourse-cdn.com/v4/letter/g/c77e96/32.png) [@Gwen\_Lipinski](https://forum.inductiveautomation.com/u/Gwen_Lipinski)\
**Post date:** [August 3, 2026, 7:31pm UTC](https://forum.inductiveautomation.com/t/voice-notification-could-not-find-compatible-locale-for-language-code-en-us/116592/2 "2026-08-03T19:31:02Z")

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So I had version 8.3.2 installed and apparently the voice module doesn't work with that version anymore. I upgraded to the latest version, 8.3.8, and it works now.

[Updated 8.3 Voice Notification Module for download (Fix for module startup issue) - Ignition - Inductive Automation Forum](https://forum.inductiveautomation.com/t/updated-8-3-voice-notification-module-for-download-fix-for-module-startup-issue/115390)