[Asterisk-Users] [OT] GSM patents

[Steve Underwood]

Federico Edelman wrote:

>Hi guys,
>Where can I find information about GSM codec patents, fees or other
>legal information?
>
>I'm interested in develop a VoIP software and I'd like to use GSM codec.
>
>Thanks in advance,
>Fede
>  
>
Where would be a good place to look for patents on ETSI specs? 
www.etsi.org maybe? :-) They do, in fact, list all the people who claim 
IP rights over each spec. They don't spell out all the details, though. 
I doubt there are simple licencing programs for using these things in 
anything but a GSM or UMTS system. That is the only place most of the 
codecs have been deployed.

The original 06.10 codec, which * supports, seems to be free of patent 
problems. Its just too old to have any. :-) Philips used to claim one, 
but I think its safe now.

Steve