Configure SMS notifications via Nexmo in Oh Dear
Once you're in the notifications menu, you can see the Nexmo SMS configuration settings.
You'll need an API key & API secret, which you can get by creating an account at Nexmo
Once you have your API token & user key, you can add them in the Oh Dear notifications screen.
For more details on using the Nexmo API for sending text alerts, check out the official Nextmo documentation.