Set up
Pair your iPhone
Install the app, allow four permissions, scan one code.
1. Install LineFerry
Open the TestFlight link from your invite on the iPhone and install LineFerry. You need iOS 17 or later.
2. Allow what it asks for
| Permission | Why |
|---|---|
| Microphone | So the person on the call can hear you |
| Local network | To find the gateway on your Wi-Fi and talk to it |
| Notifications | For texts and missed calls |
| Contacts | To show names instead of numbers (optional) |
If you said no to Local network by mistake: iPhone Settings → Privacy & Security → Local Network, then turn on LineFerry.
3. Scan the pairing code
- Put both phones on the same Wi-Fi (or join the gateway’s hotspot from the iPhone).
- On the gateway, in LineFerry, tap Instant Pair (QR). It shows a code and Waiting for iPhone to scan…
- On the iPhone, open the Gateway tab and tap Scan QR to Pair Gateway.
The Gateway tab switches to Connected and your contacts, messages and call history load.
Without the camera
In the Gateway tab, tap Auto-Detect Gateway. The iPhone searches your network for the gateway and connects to it. You can also type the gateway’s address by hand under the advanced settings.
Next
Call your number from another phone to check it rings. Then read Networks and ringing.