Port Forwarding the ZyXEL Prestige652H-33 Router for VoipBuster

What is Port Forwarding?

If you don't know what Port Forwarding is yet, you might want to start by reading our What is Port Forwarding guide.

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Before Forwarding a Port Setup a Static IP Address

To setup port forwarding on the ZyXEL Prestige652H-33 router your device needs to have a static IP address. You should complete one of the following steps first:

Now that you have setup a Static IP Address on your device, please enter the IP address that you assigned to your device here:

Don't Skip This Step!

Login to the ZyXEL Prestige652H-33 Router

Now we need to know your routers IP address. You can find it a variety of ways.

How To Find Your ZyXEL Prestige652H-33 Router IP Address

It's ok if you don't know your ZyXEL Prestige652H-33 router's internal IP address. You can find it by doing one of the following:

Login To The ZyXEL Prestige652H-33 Router Using Your Web Browser

Open a web browser like Internet Explorer or Firefox. Enter the internal IP address of your router in the address bar of your browser.

ZyXEL Prestige652H-33 Screenshot 0

In the picture above the address bar has http://www.google.com in it. Just replace all of that with the internal IP address of your ZyXEL Prestige652H-33 router. By default the IP address should be set to

ZyXEL Prestige652H-33 Screenshot 1

You should see a box prompting you for your username and password. Enter your username and password now.

The Default ZyXEL Prestige652H-33 Router Username is: admin

The Default ZyXEL Prestige652H-33 Router Password is: 1234

Click the Ok button to log in to your ZyXEL Prestige652H-33 router.

Default Usernames and Passwords for other ZyXEL Routers

Please visit our Default ZyXEL Router Passwords page if the username and password shown below did not work for you.

If you can't login to your router because you forgot your ZyXEL Prestige652H-33 router username and password, use our How to Reset a Router Password guide to set your ZyXEL Prestige652H-33 router back to its factory settings.

How to Port Forward VoipBuster on the ZyXEL Prestige652H-33

Having trouble forwarding ports on the ZyXEL Prestige652H-33?

If you are having trouble with this guide, then perhaps PFConfig may be your solution. PFConfig is a software tool that will automatically forward ports for your router to save you time and hassle.

Before we can forward ports for VoipBuster, we need to figure out what ports VoipBuster is using. Here is a brief walkthrough on how to do that. Go ahead and open up VoipBuster.

Click Tools in the menu at the top of your screen. In the list that drops down click Options.

Click Connection on the left hand side of the VoipBuster program. You should now see the menu shown in the screenshot above. Make sure the Use Port box is checked. The number in the box to the right of the Use Port text contains the port you need to forward. You can change the port number, if you want to. Please enter the port you chose into the box below.

VoipBuster's Port

ZyXEL Prestige652H-33 Router Port Forwarding Screenshots

Now that you are logged in to your ZyXEL Prestige652H-33 router you should see the following:

ZyXEL Prestige652H-33 Screenshot 2

Click the NAT link near the center of the page.

ZyXEL Prestige652H-33 Screenshot 3

There should be a dot in the SUA Only setting. If this isn't the case, you can not setup port forwarding without making a major change to your network. I wouldn't advise changing this unless you know what you are doing. Alright, if there is a dot in the SUA Only setting, go ahead and click Edit Details.

ZyXEL Prestige652H-33 Screenshot 4

Forward User Defined Port on the ZyXEL Prestige652H-33

We will list a series of lines here that will show you exactly how to forward the ports you need to forward. VoipBuster requires you to forward the ports you entered above. Go ahead and enter the settings shown above into the Edit SUA/NAT Server Set menu.

  Start Port No. End Port No. IP Address

When you're finished, click Save near the bottom of the screen to save your changes.

And that's it! You're done!

Test if Your Ports are Open

Now that you have forwarded ports for VoipBuster on the ZyXEL Prestige652H-33 you should test to see if your ports are forwarded correctly.

To test if your port has been properly forwarded, you can use our Open Port Check tool. Our Open Port Check tool is the only online port checking tool with Guaranteed Results.

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