Use Retell-purchased phone numbers for outbound calling (import to Knotie)

Import phone numbers purchased inside Retell, assign them to customers and agents, then trigger outbound calls via webhooks.

Why this use case exists

Many agencies and operators purchase phone numbers inside Retell.

Historically, outbound setups required importing numbers directly from providers like Twilio/Telnyx, which created friction.

Knotie now supports Retell phone number import, enabling:

• Use of Retell-managed numbers in Knotie
• Customer assignment + credit tracking in Knotie
• Outbound dialing from external systems (GHL, forms, custom webhooks)

What you’ll achieve

• Import Retell phone numbers into Knotie Partner Portal
• Assign the number to a customer
• Assign a Retell agent to the number (Outbound enabled)
• Generate an outbound webhook key (owk_...)

📸 [Screenshot placeholder: Phone Numbers page showing provider = Retell and Imported badge]

Prerequisites

• A Retell account with phone numbers purchased
• Retell API credentials
• At least one Retell agent
• A customer onboarded in Knotie

Step 1 — Import Retell numbers

1. Partner Portal → Phone Numbers
2. Click Import Numbers
3. Choose Retell as the provider
4. Enter Retell API credentials
5. Select one or more numbers to import

📸 [Screenshot placeholder: Import Numbers wizard → Retell provider selected]

Step 2 — Assign the imported number to a customer

1. In the Phone Numbers list, find the imported number
2. If it shows Unassigned, click Assign
3. Choose the correct customer
4. Save

📸 [Screenshot placeholder: Assign Customer modal]

Step 3 — Assign a Retell agent (Outbound)

1. In the Agent Assignment column, click Assign Agent
2. Select a Retell agent
3. Enable Outbound for the mapping
4. Save

📸 [Screenshot placeholder: Agent assignment modal with Outbound toggle enabled]

Step 4 — Generate an outbound webhook key

1. Open the phone number detail panel
2. Find Outbound Webhook
3. Click Generate Key
4. Copy and store it securely

📸 [Screenshot placeholder: Outbound Webhook Key generated (owk…)]_

Step 5 — Trigger outbound calls

You can trigger outbound calls from:

• GoHighLevel workflows (native)
• Custom webhooks
• Your backend

Required fields

Your webhook request must include:

• from_number (the imported Retell number)
• to_number (the lead phone number)

Authentication

Send:

• Authorization: Bearer owk_...

📸 [Screenshot placeholder: Example webhook request payload]

Operational notes

• If you are using Retell-purchased numbers, billing for telephony may remain with Retell.
• Knotie still provides the partner/customer management layer: assignment, tracking, and quota/credit enforcement.