Twilio offers phone numbers in many countries, and a number from your Twilio account can handle both SMS and voice calls, so contacts can text it or call it and be answered by your flows. Where the number supports it, messages can include photos and other media.

Before you start

You'll need a Twilio account, along with its Account SID and Auth Token, which are under Account Info on the Twilio Console dashboard. Twilio explains where to find your Account SID, including for a subaccount.

You can use a number that's already on your Twilio account, or buy a new one while adding the channel. Not every country supports two-way SMS, so check which countries Twilio supports.

Adding the channel

Go to Settings > Channels and click New Channel. Twilio is under SMS & Voice, or you can type its name in the search box.

If your workspace isn't connected to a Twilio account yet, enter your Account SID and Auth Token and click Continue.

You'll then see the numbers already on your Twilio account. Click one to add it, or search for a new number by country and, optionally, the digits it should contain. Clicking a number from the search results buys it, which charges your Twilio account.

There's nothing more to set up on Twilio's side: the number is set up to send its messages and calls to your workspace.

Considerations

If you connected a Twilio trial account, its numbers have some restrictions. See Twilio trial numbers.

Twilio handles opt-out keywords like STOP itself. See Managing Opt-Outs on Twilio Channels.

To learn more about channels in general, see Introduction to Channels.