Use this path instead of Path A when you need more than one destination (sales versus support, for example), a custom message for each destination, or a warmer handoff where the person picking up hears context before the call connects.
Step 1: Create the Tool
- From the left-hand menu of your portal, click Tools.
- Click Create Tool.
- Choose Transfer Call as the tool type. It's grouped under Phone Call Tools, alongside Hang Up and Press Keypad. You may also notice Handoff listed separately under Assistant Tools; that's a different feature for passing a call between assistants inside a Squad, not for transferring to a person, so skip it here.
- Fill in the Tool Label (a name you'll recognize), the Tool Name (an internal identifier, for example transfer_to_sales, that doesn't need to be customer-friendly), and a Description telling the assistant when to transfer the call.
Step 2: Add One or More Destinations
A single tool can hold more than one named destination, so a "Sales" and a "Support" destination can both live inside one Transfer Call tool.
| Field | What It Does |
| Phone Number | The real number this destination connects to. |
| Enforce E164 Format | A toggle that requires the number to be entered in standard international format (for example, +15551234567). |
| Extension (optional) | An extension to dial automatically once the destination number answers. |
| Caller ID (optional) | The number that shows up on the destination's caller ID when the transferred call comes through. |
| Message to Customer | What your assistant says out loud to the caller while the transfer is happening. |
| Description | A short note that helps your assistant decide when this particular destination (not the tool overall) is the right one, especially once you have more than one. |
Step 3: Choose a Transfer Mode
The Transfer Plan's Transfer Mode controls how the handoff itself feels:
- Blind Transfer (the default) hands the call straight to the destination, the same way a regular phone forward works. Fast, no extra steps.
- Warm Transfer gives the person picking up a heads-up before the caller connects, either a short summary of the call or a custom message, so they already know why the caller is being sent to them.
A few more advanced transfer modes also exist for specific phone setups and experimental use cases. Most businesses never need these; contact your Sulus representative if you think you do.
Step 4: Attach the Tool to Your Assistant
Once a Transfer Call tool is created in the Tools library, it's available to attach to any assistant. There are two ways to do that:
- Open the assistant, click ⋮, select Advanced Editor, click AI Model in the Sections list, scroll down past System Messages to the small Tools heading (right above Analysis Configuration), and click + Add Tool to select the tool you created.
- Or, in the fuller Tools section (the same Sections-nav item used in Path A), use Select Tools to search for and attach it there instead.
Either way, click Save Changes once it's attached.
Step 5: Tell Your Assistant When to Use It
Attaching the tool doesn't tell your assistant when to reach for it. That instruction lives in its system prompt (covered in full in How to Write and Update Your Assistant's System Prompt).
- In Advanced Editor > AI Model, scroll up to System Messages and find Message 1 (Role: System). The Content box there is your assistant's main instructions.
- Add a plain sentence describing when to transfer, and if you built more than one destination, describe each: “If the caller asks about pricing or wants to buy something, transfer to Sales. If the caller has an existing account and needs help, transfer to Support.”
- Click Save Changes.
Menu Paths
Path A: [Your Assistant] > ⋮ > Advanced Editor > Tools (Sections list) > Predefined Functions > Forwarding Phone Number
Path B, create: Tools (left-hand menu) > Create Tool > Transfer Call
Path B, attach + instruct: [Your Assistant] > ⋮ > Advanced Editor > AI Model > Tools > + Add Tool, and System Messages > Message 1 > Content
✓ Save, Then Test By Calling
After saving, place a test call and ask for whatever should trigger the transfer. Confirm you hear the message, the destination phone rings, and the caller connects. If it doesn't fire, double check the system prompt wording first, since that's the most common reason a tool goes unused.