Connect an SMS channel (Twilio or Bandwidth)

Last updated: 26 September 2026 · 4 min read

Steps

1. 1

   Choose the SMS card

   On Settings › Workspace settings › Inboxes, click “Add Inbox”. In the catalog, click “Connect” on the “SMS” card.

2. 2

   Choose the provider

   From the “API Provider” list, choose “Twilio” or “Bandwidth”.

3. 3

   Enter the account details

   For Twilio: “Inbox Name”, “Phone Number”, “Account SID” and “Auth Token” (or an API key). Then click “Create Twilio Channel”. For Bandwidth: “Account ID”, “API Key”, “API Secret”, “Application ID”, “Inbox Name” and “Phone number”. Then click “Create Bandwidth Channel”.

4. 4

   Set the callback URL

   The last page shows the “Callback URL”. Enter it in the provider's dashboard as the messaging callback address. Without it, incoming SMS don't reach Clomni. The URL is also shown later in the channel's “Configuration” section.