[Asterisk-Dev] Re: [Asterisk-biz] Is there any SCCP patent issue?

Jeremy McNamara jj at nufone.net
Sat Jun 4 07:12:19 MST 2005

Harald Milz wrote:

>Any legal insight would be welcome! 

For chan_skinny, we reverse engineered the SCCP protocol without any 
Cisco proprietary information.  My legal advice signed off on the fact 
that our work on chan_skinny would be protected under the DMCA Section 
1201 Paragraph F - Reverse Engineering clause to create interoperable 

Having a patent on the process just means they would have to sue us to 
have a court determine if we are illegally using it, which could then 
invalidate their patent, if they lost.

Jeremy McNamara

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