Connection Between Two IPPBX

Overview

Zycoo IPPBX is built on the Asterisk platform and supports the standard SIP protocol. It can connect to IMS SIP trunks from ITSPs (Internet Telephony Service Providers) as well as SIP endpoints.

This document provides instructions for establishing communication between two Zycoo IPPBX systems.

Communication Setup Guide

1. Network Topology Overview

The IAX2 trunk can transport both telephony signaling and RTP media data through a single port (4569), making it easy to establish communication between Zycoo devices.

Note: You may also use a SIP trunk instead of an IAX2 trunk. The configuration procedure is the same; simply add a SIP trunk in place of the IAX2 trunk.

Example Network Topology:

2. Server B Configuration

Prerequisites:

• Server A address: 192.168.18.30

• Server A extension range: 3XX

Step 2.1: Configure IAX2 Trunk on Server B

1. Log in to the IPPBX web interface using the admin account

2. Navigate to Telephony → Outbound Control → Trunks

3. Click the Add button under IAX Trunks

Configure the IAX2 trunk with the following parameters:

Step 2.2: Configure Dial Rules on Server B

1. Navigate to Telephony → Outbound Control → Dial Rules

2. Click the Add button for DialOut

Configure the dial rule as follows:

To add additional outbound routes (e.g., via FXO/SIP trunk):
Repeat step 2.2 to add another rule with:

• Dial Prefix: 9

• Dial Pattern: X.

Step 2.3: Configure Dial Permission on Server B

1. Navigate to Telephony → Outbound Control → Dial Permission

2. Click the Add button

3. Tick the available rule DialOut

4. Click the Apply Changes button (top-right corner) to apply the configuration

Step 2.4: Verify IAX2 Trunk Status on Server B

1. Navigate to Dashboard → Trunks

2. Confirm the following status indicators:

   • Status: Shows Registered

   • Delay: Short (indicating good connectivity)

3. Server A Configuration

Prerequisites:

• Server B address: 192.168.18.252

• Server B extension range: 8XX

The configuration for Server A is similar to Server B. Please refer to the configuration parameters below:

Note: Follow the same steps outlined in Section 2 (Server B Configuration) to complete the setup on Server A.

4. Register Extensions on Both Servers

After completing the configuration on both servers:

1. Register extensions on Server A (e.g., 300–399)

2. Register extensions on Server B (e.g., 800–899)
   

5. Verification

Once both servers are configured and extensions are registered:

• An extension on Server A (e.g., 301) can call an extension on Server B (e.g., 801)

• An extension on Server B (e.g., 801) can call an extension on Server A (e.g., 301)

Both phones can now communicate with each other successfully.