Airlink RV50X - Message Format Configuration?

Hi everyone,

I’m working on configuring an AirLink RV50X, and the only part I haven’t been able to get working is the alarm acknowledgement.

I can successfully receive the alarm text message, and I can see my acknowledgement response showing up in the Inbound SMS Messages tab on the modem. The last incoming phone number also matches the number configured in the gateway for the user.

However, I noticed there’s an additional option called Message Format Configuration that wasn’t mentioned in the setup documentation. Could this be something I need to adjust?

Has anyone dealt with this before or have any advice? Thanks in advance!