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đŸ”ļ 3CX PBX — SIP Trunk Configuration Guide

Step-by-step guide for configuring WOCOM Flexible SIP Trunk with your 3CX PBX system.

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Setup Time
10–15 minutes
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Difficulty
Beginner
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Platform
3CX PBX System

🌐 WOCOM SIP Trunk Network

How your 3CX PBX connects to the WOCOM voice network.

📱📞
Your Devices
Smartphones,
Desk Phones
LAN / WiFi
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3CX PBX
Your Phone System
SIP / Internet
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WOCOM Flexible
SIP Trunk Service
PSTN Gateway
🌍
PSTN
Public Telephone
Network

🔑 WOCOM SIP Trunk Credentials

Ensure you have the following information before starting.

Setting Value
Provider Address voip1.wocomja.com — may vary based on location
Username Your WOCOM assigned phone number
Authenticate ID Your WOCOM assigned phone number
Password Your WOCOM account secret / password

🔓 Step 1 — Access 3CX Management Console

Open the 3CX admin interface in your browser.

Open your web browser and navigate to the 3CX Management Console. This is typically accessed at https://your-3cx-server:5001 or the URL provided during 3CX installation.

https://your-3cx-server:5001
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3CX Management
Username
admin
Password
â€ĸâ€ĸâ€ĸâ€ĸâ€ĸâ€ĸâ€ĸâ€ĸ
Login

👤 Step 2 — Log In

Authenticate with your administrator credentials.

💡
Log in with your administrator credentials. If you don't have admin access, contact the person who installed 3CX to obtain credentials or grant you admin rights.

📡 Step 3 — Navigate to SIP Trunks

Find the SIP Trunk management section.

Open SIP Trunks

In the left-hand menu, go to "SIP Trunks".

Add SIP Trunk

Click on "Add SIP Trunk" to create a new SIP trunk.

3CX — SIP Trunks
Navigation
Dashboard
Extensions
→ SIP Trunks
Inbound Rules
Outbound Rules

➕ Step 4 — Select Trunk Provider

Choose the generic SIP trunk option for WOCOM.

Select Country

Under Country, select "Generic".

Select Provider

Under Provider in your Country, select "Generic SIP Trunk".

Continue

Click Next to proceed to the trunk configuration.

Add SIP Trunk — Provider
Country
Provider in your Country
Next →

📝 Step 5 — General Settings

Name your trunk and set the main number.

Trunk Name

Enter a name for your SIP trunk, e.g. "WOCOM-SIP".

Main Trunk Number

Set the Main Trunk Number to the primary phone number associated with the SIP trunk (your WOCOM-assigned 876 number).

General Settings
Trunk Name
WOCOM-SIP
Main Trunk Number
8760000000

đŸ–Ĩī¸ Step 6 — SIP Server Details

Enter the WOCOM SIP server information.

Under the "SIP Server" tab, enter the SIP server details provided by your WOCOM support representative. This includes the SIP server hostname or IP address.

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Registrar/Server: voip1.wocomja.com
This may vary based on your location — use the address provided by WOCOM.
SIP Server Configuration
SIP Server
Registrar/Server/Gateway Hostname or IP
voip1.wocomja.com
Outbound Proxy
voip1.wocomja.com
Port
5060

🔐 Step 7 — Authentication Details

Enter your WOCOM SIP credentials and set the authentication type.

Authentication Type

Set the Type of Authentication to "Register/Account based".

Username

Enter the username provided by WOCOM (your assigned 876 phone number).

Password

Enter the password provided by WOCOM upon service activation.

Save

Click "OK" found at the top of your SIP trunk configuration page to save.

Authentication
Authentication
Type of Authentication
Authentication ID (User ID)
8760000000
Authentication Password
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OK ✓
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Important: Replace 8760000000 with your actual WOCOM-assigned phone number and enter the password provided upon service activation.

🔴 Registration Status

Verify your SIP trunk is registered and active.

Red Dot

Your SIP trunk is not registered. Check your credentials, server address, and ensure your firewall allows SIP traffic on port 5060.

Green Dot

Your SIP trunk is registered and active. You can now make and receive calls through your WOCOM SIP trunk.

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Tip: To view the current registration status, you may need to click the "Refresh" tab in the SIP Trunks list. If the dot remains red, double-check your credentials and contact WOCOM Technical Support.
🎉
Congratulations! You have successfully configured WOCOM Flexible SIP Trunk on your 3CX PBX. Once the registration status shows a green dot, you can make and receive calls. For additional assistance, contact WOCOM Technical Support.
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Need Help?

Our technical support team is available to assist with 3CX configuration, SIP trunk troubleshooting, and call routing setup.

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