Telephony & SMS Tools — Twilio & Telnyx Messaging
Langoedge Team2 min read
What are the Telephony & SMS Tools?
Langoedge integrates with Twilio and Telnyx, enabling your text and voice graphs to dispatch outbound text messages (SMS) dynamically.
This is highly effective for sending appointment confirmations, booking links, authentication codes, or summary follow-ups to a caller's mobile phone mid-conversation.
**Prerequisite: Active Carrier Connection Required**
Before your AI agents can send outbound SMS text messages, you **must** connect your Twilio account (using your Account SID and Auth Token) or Telnyx account (using your API Key) on the **[Connect Page](https://app.langoedge.com/connect)**.
If these carrier integrations are not authenticated, SMS nodes in your graphs will fail to execute.
1. Twilio SMS Integration (twilio_send_message)
Sends an SMS text message using your connected Twilio number.
Tool Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
to |
string |
Yes | Destination phone number in standard E.164 format (e.g. +15551234567). |
body |
string |
Yes | Text content of the SMS. |
2. Telnyx SMS Integration (telnyx_send_message)
Sends an SMS text message using your connected Telnyx account profiles.
Tool Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
to |
string |
Yes | Destination phone number in standard E.164 format. |
body |
string |
Yes | Text content of the SMS. |
Additionally, you can use telnyx_list_messaging_profile_id_options to retrieve a list of active profile IDs connected to your Telnyx credentials.
Frequently Asked Questions
Can a voice agent trigger an SMS while I am talking to it?
Yes. If a voice agent determines that you require a reference link or details, it can call the `twilio_send_message` tool. The SMS will be sent to your mobile phone immediately while the call remains active.
Do I need to connect my own Twilio/Telnyx account?
Yes. You must authorize and connect your Twilio or Telnyx accounts in the **[Connect Page](https://app.langoedge.com/connect)**, providing your Account SID/Auth Token or API key.