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This tool is used to send an SMS during a phone call. You can send to the caller’s number or a different number.
This tool only works for phone numbers that have SMS enabled. This includes Retell Twilio numbers and custom telephony numbers that have passed A2P applications. Read more about enabling SMS.
Agents can also receive SMS during an active call and understand the content, including text, images, audio, and video. This works out of the box for Retell Twilio numbers, and for custom telephony numbers that passed A2P applications. Read more at Receive SMS during call.

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Configure SMS content

You can write a prompt to let the agent infer the SMS content, or use static SMS content. Dynamic variable is supported for static SMS content.

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Configure SMS destination

By default, the SMS is sent to the caller’s number. You can also choose to send to a different number — either a static number or a dynamic variable (e.g. {{customer_phone}}).

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Talk while waiting

Enable this option to have the agent say a short phrase while the SMS is being sent. You can configure the message as a prompt or a static sentence.

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Speak after sending message

Enable this option to have the agent speak after the SMS has been sent. This is useful for confirming to the user that the message was delivered.