Are you one of those people who are always available on Discord? Do you want to be even more available? Then this bot is for you! This small Cloudflare Worker allows your fellow Discord friends to call your cellphone, for example if you manage a service and it goes down, or if you're an admin in a server that is getting raided. The main purpose is to be even more available, like when you don't have Wi-Fi/cellular data available.

Deploy to Cloudflare Workers

1. Deploy to Cloudflare Workers using the button above.
2. Insert the environment variables listed in the wrangler.toml file. You can either use the wrangler command, or do it through the worker dashboard.
3. Edit the Discord application and set the interactions endpoint to https://phone.WORKER_SUBDOMAIN.workers.dev/interaction. This is where the bot will receive interactions.
4. Go to https://phone.WORKER_SUBDOMAIN.workers.dev/update-commands?key=DISCORD_PUBLIC_KEY to update and register the /call slash command.
5. Add the bot by visiting /invite. Make sure to uncheck "Public bot" in the Discord Developer portal so other people can't add it to servers you don't want to have access to call you.
6. It might take some time before the command appears because of Discord's caching, but you should be able to use the /call command within the hour!

sequenceDiagram
 autonumber
 participant D as Discord API
 participant W as Cloudflare Worker
 participant T as Twilio API
 activate D
 D->>W: Send an interaction
 activate W
 alt signature header is not valid
 W-->>D: 401 Unauthorized
 end
 W->>T: Send call request
 activate T
 T->>T: Calls the user
 T-->>W: 200 OK
 deactivate T
 W-->>D: 200 OK (with Interaction Response)
 deactivate D
 deactivate W
 loop until call is finished
 T->>W: Call Status Update
 activate T
 activate W
 W->>D: Update Interaction with new status
 activate D
 D-->>W: 200 OK
 deactivate D
 W-->>T: 200 OK
 deactivate T
 deactivate W
 end

It might cost a tiny little bit of money after you've used up your free trial at Twilio. The amount really depends on your location, the Twilio phone number's location etc. - but the free trial will probably get you a long way already.

I think it's obvious enough... but I will not pay for your phone number.