---
title: ☎️ One Number Service (Shared Line Appearance)
description: Kiwi VoIP One Number lets up to 6 devices ring from a single VoIP number. Learn how to enable shared line appearance and configure SIP logins with suffixes.
---
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16 July 2025
# ☎️ One Number Service (Shared Line Appearance)
## Kiwi VoIP One Number: Set up multiple devices to ring simultaneously with a single number.
The **One Number** feature allows you to register **up to 6 devices** to a single Kiwi VoIP number, so when someone calls you, **all registered phones or devices ring simultaneously**.
Whether you're using a VoIP handset in the office, a softphone on your laptop, or a dual-mode smartphone — you'll never miss a call again.
---
#### 💡 Why Use One Number?
- ✅ Ring your **handset, mobile app, and softphone** at the same time
- ✅ Keep one Kiwi VoIP number instead of setting up call forwarding between multiple numbers
- ✅ Perfect for **remote teams**, **mobile workers**, and **small offices**
- ✅ Combine with **Locate Me** to fall back to a mobile or landline when offline
---
#### 🛠️ How to Enable the One Number Service
1. Log into your Kiwi VoIP portal:
👉 [https://portal.kiwivoip.co.nz](https://portal.kiwivoip.co.nz)
2. Select the Kiwi VoIP number you want to configure
3. Go to **Cloud PBX \> Inbound Calls \> Shared Line**
4. ✅ Tick **Enable Shared Line Appearance**
5. Click **Save Settings**
---
#### 📲 Setting Up Multiple Devices
Each device you register must have a **unique SIP login**, based on the main number with a **suffix** added:
- Your **primary device** uses the Kiwi VoIP number as-is
- Each additional device appends `-1`, `-2`, `-3`, ..., up to `-5`
- All devices use the **same password**
> ❗ You can register **up to 6 devices** total (including the primary)
---
#### 🔧 Example Setup
| Device | SIP Login |
| --- | --- |
| Primary Handset | `028890123` |
| Softphone (e.g. 3CX) | `028890123-1` |
| ATA Adapter | `028890123-2` |
| Smartphone (e.g. 3CX) | `028890123-3` |
| Office Desk Phone | `028890123-4` |
| Reception Console | `028890123-5` |
---
#### 💬 Best Practices
- Assign a **primary device** for voicemail and message waiting indicators
- Avoid using the same suffix on more than one device
- Combine with **Call Parking**, **SimRing**, or **Call Queuing** for team setups
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