## transfer()

`call.transfer()` hands the active call off to another phone number or SIP address. It is a soft transfer — the agent notifies the caller before bridging, so there's no abrupt silence or dead air.

### Signature

```
call.transfer(
    destination: str,
    instructions: str | None = None,
)
```

| Parameter   | Type              | Default | Description                                                                           |
|-------------|-------------------|---------|---------------------------------------------------------------------------------------|
| destination | str               | —       | The phone number or SIP address to transfer the call to.                             |
| instructions| str \| None      | —       | What the agent should say before bridging. Defaults to a generic "I'll transfer you now" message. |

### Example

```
@agent.on_task_complete("collect_issue")
def on_issue_collected(call: guava.Call):
    call.transfer(
        destination="+18005550199",
        instructions="Let the caller know you're transferring them to a service representative.",
    )
```