# Alternative to Airlink LS300 SMS modem

**URL:** <https://forum.inductiveautomation.com/t/alternative-to-airlink-ls300-sms-modem/15899>\
**Category:** Ignition\
**Created:** [November 6, 2017, 5:29pm UTC](https://forum.inductiveautomation.com/t/alternative-to-airlink-ls300-sms-modem/15899 "2017-11-06T17:29:47Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![pat.stave1](https://avatars.discourse-cdn.com/v4/letter/p/f19dbf/32.png) [@pat.stave1](https://forum.inductiveautomation.com/u/pat.stave1)\
**Post date:** [November 6, 2017, 5:29pm UTC](https://forum.inductiveautomation.com/t/alternative-to-airlink-ls300-sms-modem/15899/1 "2017-11-06T17:29:47Z")

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Are there any good / tested alternatives to the Airlink LS300 for sending SMS alarms?  
This unit is quite expensive in Norway. Any other less expensive units that does the same job?

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**Author:** ![cmisztur2](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/cmisztur2/32/4243_2.png) [@cmisztur2](https://forum.inductiveautomation.com/u/cmisztur2)\
**Post date:** [November 7, 2017, 12:29am UTC](https://forum.inductiveautomation.com/t/alternative-to-airlink-ls300-sms-modem/15899/2 "2017-11-07T00:29:35Z")

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> [@pat.stave1](#):
>
> Airlink LS300

Can you just use a software solution, like Twilio, from within Ignition? Or are you trying to get data into Ignition?

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**Author:** ![pat.stave1](https://avatars.discourse-cdn.com/v4/letter/p/f19dbf/32.png) [@pat.stave1](https://forum.inductiveautomation.com/u/pat.stave1)\
**Post date:** [November 7, 2017, 8:00am UTC](https://forum.inductiveautomation.com/t/alternative-to-airlink-ls300-sms-modem/15899/3 "2017-11-07T08:00:46Z")

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This is a safety-critical system, so SMS needs to be sent even in a case of outage of the internet connection. That is the reason for using a hardware modem.  
We may also end up using both a physical modem and Twilio to maintain redundancy.

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [November 7, 2017, 12:15pm UTC](https://forum.inductiveautomation.com/t/alternative-to-airlink-ls300-sms-modem/15899/4 "2017-11-07T12:15:06Z")

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> [@pat.stave1](#):
>
> This is a safety-critical system, so SMS needs to be sent even in a case of outage of the internet connection.

This scares the heck out of me. Ignition and virtually all general-purpose computing platforms are not rated for safety-critical duty, and SMS certainly isn't such a technology either.

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**Author:** ![dcamp](https://avatars.discourse-cdn.com/v4/letter/d/a88e4f/32.png) [@dcamp](https://forum.inductiveautomation.com/u/dcamp)\
**Post date:** [November 7, 2017, 1:09pm UTC](https://forum.inductiveautomation.com/t/alternative-to-airlink-ls300-sms-modem/15899/5 "2017-11-07T13:09:28Z")

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Any simple POTS autodialer should work. Probably pick 1 up for under $100.00. I think most routers have the means of setting up SMS for dropped connection, you may need to get the IT department involved.