Installing DAHDI in Amazon AWS EC2 Web Service

After a lot of searching, it is possible to install DAHDI drivers in Amazon AWS Web Services

There are a lot of information out there on the web, but it just seems like the information you need is the ONLY one you cannot find.  Well, I felt that way when I decided to dabble with Amazon AWS and install an Asterisk IP PBX server in it.

Everything was going great until the DAHDI installation and I hit a roadblock.  We all know that roadblock I am talking about otherwise, you would not be here reading this post.  The roadblock of not having Amazon’s VM Linux kernel source which is not totally Amazon’s fault but lies with XEN environment as well.

If you have been following my posts on this subject, I learned that the newer versions of Linux AMIs available on Amazon AWS has 1Khz Timing which is optimized for Voice over IP implementation so that was good enough for me to go on even with DAHDI support.  I got the Asterisk working with two separate dialplans for two separate companies and I was testing with various SIP providers to analyze any performance issues.  So far so good..

Then the bug hit me again.  I really really wanted DAHDI installed so that I can have some virtual conference rooms so here we go again!

Well, I am glad to say that after much trial and error, and poking around on Google and Bing, I believe I found a solution!  I have already loaded up a new micro instance on Amazon AWS with their basic 64 bit Linux and have installed DAHDI and Asterisk.  Now I will be testing for long term performance issues or any problems that might arise from loading a new kernel.

If you are interested in finding out more about it, let me know via Facebook.  I would really like to hear what the readers have to say and I welcome your experiences.



About Express Interconnect: We are a Portland, Oregon based Small Business VoIP Phone Consultant specializing in implementing quality VoIP PBX system based on Asterisk IP PBX. We can be reached at 503-820-3513 or via email at: and can help with any questions you might have.

Due to Demand, we have finally branched out into Hosted VoIP Phone Service for Small Businesses.  Our Hosted VoIP Service provides full Asterisk IP PBX functionality in a simple Plug and Play system.

Also, please make sure to visit our on-line store at VoIP Phones Direct for all of your IP Phone needs. We carry Grandstream, Polycom, Snom, Aastra, and Yealink IP Phones with a 14 day money back guarantee and FREE UPS Ground Shipping.

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