How to Disable SIP and RTP Processing on your Fortigate for VoIP Goodness!

So I’m sitting there… having moved our SIP Gateway and VoIP Phone system behind the Firewall and then OMG ITS NOT WORKING! I mean, it is, and by it is, I mean, no. It isn’t working. :)   Lo and behold technically OMG THE SOLUTION IS DISABLE SIP!  Well, that sounds pretty ridiculous… But I guess it turns out that the system has a native SIP handler and knows better than we do! Well, you’re wrong. You don’t know better than we do, unless ‘knowing better’ means breaking my SIP traffic!

That said, there are a few other blogs where I found answers which helped lead to this solution (included below) but you know me.. I like to make sure I have a source to refer back to things and of course to share my experience on the matter, thus here it is! :)

Step One: Disable SIP Helper!

  1. config system settings
  2. set  sip-helper disable
  3. set sip-nat-trace disable
  4. REBOOT THE DEVICE!!! (You may want to wait on rebooting until AFTER you do the next few steps!)

Step Two: Delete the SIP Helper

  1. config system session-helper
  2. show (Look for the SIP helper, often object 12)
  3. delete # (whatever number the SIP helper was)

Step Three: Disable RTP Processing

  1. config voip profile
  2. edit default
  3. config sip
  4. set rtp disable

And there you have it! If you did the steps in reverse and then rebooted, your Fortigate should no longer be preventing your SIP traffic from working!  That is also of course ensuring you’re sending all of the right ports through in your firewall rules… that’s up to you to check with your respective VoIP vendor to make sure you have the full compliment of ports, policies, etc!

Good luck! <3

Other blogs which helped solve this!

WTF Vonage? Price Hike on the "Cheap Package" ?!

Here’s a fun email I received today!

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Dear Christopher Kusek,
At Vonage, we’re committed to providing exceptional phone service at a great value you can rely on. On December 1, 2008, the price of our Residential Basic 500 Minute Plan increased from $14.99 to $17.991. The new price will be reflected in your February 2009 bill. We’re proud that we remain one of the most competitive choices among home phone providers.
Don’t forget, with the Vonage Residential Basic 500 Minute Plan, you will continue to receive 25 great features, like Call Waiting, Caller ID, and Voicemail Plus that many phone companies still charge for. International calls are still as low as 1 cent per minute.
As an option, you might consider the Residential Unlimited Plan for only $24.992 a month. For just $7 more you will get:

  • Unlimited local and long distance calls in the US, Canada, and Puerto Rico
  • FREE calls to landline phones in Italy, France, Spain, UK and Ireland
  • Peace of mind – never worry about going over your minutes again!

For even more savings and the convenience of one bill each year, you can pay in advance with our Annual Pre-Pay option and save 20% off the standard rate3 or just $19.99 a month.
Click here to access your Online Account and check out these options and more. If you have any questions, you can call 1-VONAGE-HELP and speak to a customer care representative.
At Vonage, we continue to provide you with the best service at the lowest possible price.
Thank you for your business,
Vonage

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Here are some of my favorite parts:

1 Maintaining Vonage service on or after your adjusted bill cycle date confirms your agreement to the rate change.

Uh, WTF? “Watch as we screw you, and you standing by and taking it is your way of agreeing!”

As an option, you might consider the Residential Unlimited Plan for only $24.992 a month. For just $7 more you will get:

Hey, we’re charging you more, so it doesn’t look so Economically bad for you to Pay us even MORE money for the same non-service! Sound good? IT’s only another $7 ! ! !

I stood by and let the fake ‘surcharges’ and other BS slide for the longest time (I’m a far stretch from when I was paying only $16.91 a month, which was a lot considering our non-home phone usage.   And then after ‘bs surcharges’ it went up to ~20 (Which was more than I paid ATT) But now, you’re raising it even more, so after surcharges I’ll be paying roughly ~25 dollars? Yea, sorry.  I don’t think so.

Who knows what type of VoIP service I will switch to in order to maintain a home phone, but I can tell you it won’t be Vonage for much longer.