Configuring VitalPBX Firewall for Crazytel SIP Trunks

Overview

To ensure proper communication with Crazytel services, you need to whitelist Crazytel's IP addresses in your VitalPBX firewall settings.

Important Note

• Crazytel's IP addresses may change periodically
• Always check the Getting Started Guide in the Crazytel portal for the current list
• Review the IP list regularly to ensure your whitelist remains current

Configuration Steps

1. Access Firewall Settings

1. Navigate to the left-hand menu
2. Select Admin → Security → Firewall
3. Click on the Whitelist tab
   

2. Add Crazytel IP Addresses

For each IP address:

1. Click the Add button in the bottom right corner
2. Enter the following details:
   • Host: Enter the Crazytel IP address
   • Description: Add a brief description (e.g., "Crazytel SIP Server 1")
3. Click Add to save the entry
4. Repeat for each Crazytel IP address
   

3. Save Configuration

• After adding all IP addresses, click the Save button in the bottom right corner
• Wait for the firewall configuration to update

Verification

After configuration:

• Check that all Crazytel IP addresses are listed in the whitelist
• Verify that your VoIP service works correctly
• Test both incoming and outgoing calls

Best Practices

1. Label each IP address clearly in the description field
2. Keep documentation of when you last updated the whitelist
3. Set a regular schedule to review and update the IP whitelist
4. Back up your firewall configuration after making changes

Troubleshooting

If you experience connectivity issues:

• Verify all current Crazytel IP addresses are whitelisted
• Check the Getting Started Guide for any IP updates
• Ensure there are no conflicting firewall rules
• Contact support if issues persist

Note: Proper firewall configuration is crucial for service reliability. Always maintain an up-to-date whitelist.