How to send SMS messages with Telnyx

Get started sending SMS notifications with Telnyx and Knock.

Knock integrates with Telnyx to send SMS notifications to your recipients.

Features

Delivery tracking
Knock link tracking
Per environment configuration
Sandbox mode
Number Pool messaging

Getting started

You can create a new Telnyx channel in the dashboard under the Channels and sources page in your account settings. From there, you'll need to configure the channel for each environment you have.

Channel configuration

The following channel settings should be configured per environment. Navigate to Channels and sources in your dashboard account settings, select your Telnyx channel, then click "Manage configuration" under the environment that you'd like to configure.

Fields marked with an * are required.

Knock settings

Sandbox modeboolean

Whether to enable sandbox mode for your Telnyx channel.

Knock link trackingboolean

Whether to enable Knock link-click tracking.

Provider settings for Telnyx

API keystring*

The API key from Telnyx.

Fromenum*

The method used to send your SMS messages. One of Phone number, Short code, Sender ID, or Messaging Profile ID.

Phone numberstring*

The phone number to send messages from. Required when From is set to Phone number.

Short codestring*

The Telnyx short code to send messages from. Required when From is set to Short code.

Sender IDstring*

The Telnyx Sender ID to send messages from. Required when From is set to Sender ID.

Messaging Profile IDstring*

The Telnyx Messaging Profile ID to use for Number Pool messaging. Required when From is set to Messaging Profile ID.

When configured, the optional payload overrides set here will apply to all SMS notifications sent from this channel in the configured environment. Learn more about SMS channel overrides here.

Payload overridesJSON (string) | liquid

Provide a JSON object to merge into the API payload that is sent to the downstream provider.

Set optional per-environment conditions for this channel. These conditions are evaluated each time a workflow run encounters a step that uses this channel in the configured environment. If the conditions are not met, the step will be skipped.

Recipient data requirements

In order to send an SMS notification you'll need a valid phone_number property set on your recipient.