🔄 SIP Trunking – Peering Method with Kiwi VoIP

SIP Peering enables a direct, trusted connection between your PBX and the Kiwi VoIP Voice Platform. This method allows advanced call routing control and greater reliability — ideal for on-premise systems with a static IP.

🌐 What is SIP Peering?
SIP Peering is a network-to-network method for connecting your PBX to Kiwi VoIP. Calls are sent directly to your PBX’s static IP, bypassing registration.

✅ Best for on-site PBX systems
✅ Requires a public static IP
🚫 Cannot be used with devices that register via SIP login at the same time

🔧 Option 1: Account-Level SIP Peering Setup

Choose a “pilot number” for the trunk
Log into https://portal.kiwivoip.co.nz
Go to Cloud PBX > Preferences > SIP Peering
Tick ✅ Enable SIP Peering
Enter:
- Primary Host IP (your PBX IP)
- Failover IP (optional)
Tick ✅ "Do not reset my line settings" (optional but recommended)
Click Save

📌 Enabling SIP Peering disables features like Voicemail and Call Transfers on affected lines (they’re now handled by your PBX).

🛠️ SIP OPTIONS Polling (Heartbeat Checks)

Kiwi VoIP sends a SIP OPTIONS ping every minute:

✅ If enabled, failover happens instantly after 3 missed pings
❌ If disabled, failover only occurs after a 30-second SIP timeout — which can delay inbound calls

Recommendation: Enable SIP OPTIONS only if your PBX responds correctly (with any valid SIP reply like 200 OK or 404 Not Found).

📤 Outbound Calls with Peering
Your PBX manages outbound calls. If you’ve configured exception routes, Kiwi VoIP accepts traffic from either the Primary or Failover IP.

🔧 Option 2: Line-Level SIP Peering Setup

To mix SIP Peering and SIP Registration on one account:

Go to Cloud PBX > Number Manager
For each number:
- Set Primary IP
- (Optional) Set Failover IP
Click Save

☑️ These lines act as Peers
☑️ Others can still be registered to devices normally

🧠 Tip: SIP Peering is ideal when reliability, speed, and custom routing are important — especially for businesses managing their own PBX infrastructure.