# SMS configuration help
**URL:** https://forum.mautic.org/t/sms-configuration-help/29238
**Category:** Product Support
**Created:** [September 10, 2023, 8:21pm UTC](https://forum.mautic.org/t/sms-configuration-help/29238 "2023-09-10T20:21:39Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@bobkitz](https://forum.mautic.org/u/bobkitz)
#### Post date: [September 10, 2023, 8:21pm UTC](https://forum.mautic.org/t/sms-configuration-help/29238/1 "2023-09-10T20:21:39Z")
**Your software**
My Mautic version is: 0.4.4.10
My PHP version is: 8.0.29
My Database type and version is: 10.6.12-MariaDB-0ubuntu0.22.04.
**Your problem**
My problem is: SMS messages are not being sent. I’ve set up a campaign and trigger to a simple test segment. The Channels:Text Messages panel shows “1 sent” however the text is never received.
These errors are showing in the log:
AH01071: Got error ‘PHP message: PHP Warning: Trying to access array offset on value of type null in /var/www/mautic/app/bundles/SmsBundle/Form/Type/SmsSendType.php on line 75’, referer: [https://mail.example.com](https://mail.example.com):xxxx/s/campaigns/new
Steps I have tried to fix the problem:
Ensured php-curl is installed
Ensured Twilio token and ID are set correctly
Ensured console mautic:messages:send is run in the cron
---
### Author:  [@bobkitz](https://forum.mautic.org/u/bobkitz)
#### Post date: [September 11, 2023, 12:34am UTC](https://forum.mautic.org/t/sms-configuration-help/29238/2 "2023-09-11T00:34:05Z")
Figured it out. I looked at the logs in Twilio and found that the messages are not being delivered because the phone number had not gone through “A2P 10DLC registration”. I submitted the number for registration and am awaiting response.