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Thanks for joining the email list and gaining access to our hidden section. In a few minutes you will receive an email that provides the URL and password for the free content.

I know that you are focused and interested in learning SIP to advance your career. Sadly it’s becoming rare to see someone that is willing to learn more about VOIP. That’s why I am extending this one time offer to you.

The content in the hidden section is taken from one section of my Udemy Course on SIP. This course normally sells for $20, but I want to make you a special, one time offer.  Keep reading to learn more.

Here’s what people are saying about the course:

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What’s great about Udemy is that they offer a 30 day money back guarantee. If you are unhappy with the course content you can refund it. It’s really that simple.

Here’s what I am offering

If you act now you can save 50% on the purchase price of the course. That’s right. You can access this 3.5 hour course for only $25! This is a complete steal. I charge $400 per person to teach this same content through an face to face seminar. It’s absolutely insane that I am offering you this for only $10.

Click on the Buy Now button below to be redirected to and purchase this course.


I know some of you aren’t interested in this offer. That’s perfectly fine too. You can enjoy the free content as promised in your welcome email.

Best Regards,

Keith Croxford – Voip Expert

Keith Croxford is an expert in VOIP, Telecom and SIP.