# SMS Alarm Acknowledgement Not Working - AirLink RV50

**URL:** <https://forum.inductiveautomation.com/t/sms-alarm-acknowledgement-not-working-airlink-rv50/29742>\
**Category:** Ignition\
**Created:** [November 6, 2019, 11:01pm UTC](https://forum.inductiveautomation.com/t/sms-alarm-acknowledgement-not-working-airlink-rv50/29742 "2019-11-06T23:01:55Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Morgan](https://avatars.discourse-cdn.com/v4/letter/m/0ea827/32.png) [@Morgan](https://forum.inductiveautomation.com/u/Morgan)\
**Post date:** [November 7, 2019, 8:00am UTC](https://forum.inductiveautomation.com/t/sms-alarm-acknowledgement-not-working-airlink-rv50/29742/2 "2019-11-07T08:00:54Z")

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Does SMS alarm acknowledgement work if ignition is running the trial version?

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_[View the full topic](https://forum.inductiveautomation.com/t/sms-alarm-acknowledgement-not-working-airlink-rv50/29742)._