# Activating SMS Service for IOT Sim

**URL:** <https://forum.sierrawireless.com/t/activating-sms-service-for-iot-sim/24345>\
**Category:** Connectivity\
**Created:** [July 22, 2021, 6:10pm UTC](https://forum.sierrawireless.com/t/activating-sms-service-for-iot-sim/24345 "2021-07-22T18:10:15Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![nadeem.haider](https://avatars.discourse-cdn.com/v4/letter/n/3d9bf3/32.png) [@nadeem.haider](https://forum.sierrawireless.com/u/nadeem.haider)\
**Post date:** [July 22, 2021, 6:10pm UTC](https://forum.sierrawireless.com/t/activating-sms-service-for-iot-sim/24345/1 "2021-07-22T18:10:15Z")

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We have purchased multiple IoT SIMS and now we are trying to send and receive SMS to our gateway device. Please let me know how to activate that?

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**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\
**Post date:** [July 23, 2021, 12:45am UTC](https://forum.sierrawireless.com/t/activating-sms-service-for-iot-sim/24345/2 "2021-07-23T00:45:51Z")

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Hi nadeem.haider

What gateway device are you using? Which IoT SIMS service providers are you using?  
Is it Sierra IoT SIMS?

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**Author:** ![nadeem.haider](https://avatars.discourse-cdn.com/v4/letter/n/3d9bf3/32.png) [@nadeem.haider](https://forum.sierrawireless.com/u/nadeem.haider)\
**Post date:** [July 26, 2021, 5:42pm UTC](https://forum.sierrawireless.com/t/activating-sms-service-for-iot-sim/24345/3 "2021-07-26T17:42:16Z")

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Hello Donald,

We are using Multitech gateway and yes, we are using Sierra IoT Sim. The web portal for sim has option to send SMS, how are we suppose to receive SMS as well?

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**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\
**Post date:** [July 28, 2021, 10:38am UTC](https://forum.sierrawireless.com/t/activating-sms-service-for-iot-sim/24345/4 "2021-07-28T10:38:47Z")

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Hi nadeem.haider

The default SMS service is available on the IoT SIM.

> [@nadeem.haider](#):
>
> We are using Multitech gateway

I don’t have this gateway.

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**Author:** ![nadeem.haider](https://avatars.discourse-cdn.com/v4/letter/n/3d9bf3/32.png) [@nadeem.haider](https://forum.sierrawireless.com/u/nadeem.haider)\
**Post date:** [July 28, 2021, 3:40pm UTC](https://forum.sierrawireless.com/t/activating-sms-service-for-iot-sim/24345/5 "2021-07-28T15:40:23Z")

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Donald this will be happening through Sierra Wireless end. We need to send send through Sierra Wireless API could you please guide me on that. We are looking for something similar to what At&T offers on there Portral, [Can I send an SMS to the device?](https://support.marketplace.iot.attcompute.com/help/can-i-send-an-sms-to-the-device)

From there we made RestAPI to send SMS  
curl -X POST --header “Content-Type: application/json” --header “Accept: application/json” -d “{ “messageText”: “Hello world” }” “[https://api-iotdevice.att.com/rws/api/v1/devices/9088217871987000001/smsMessages](https://api-iotdevice.att.com/rws/api/v1/devices/9088217871987000001/smsMessages)”

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**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\
**Post date:** [July 30, 2021, 11:11am UTC](https://forum.sierrawireless.com/t/activating-sms-service-for-iot-sim/24345/6 "2021-07-30T11:11:51Z")

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Hi nadeem.haider,

Please contact your distributor directly for support in this case.