[Freeswitch-users] G.729

[Steven Ayre]

>
> Not all the relevant patents are listed in the ITU database, so
> there might be further problematic ones, which won't expire until 2016.
>
> The bottom line seems to be that it will be something like 2015 or 2016
> before the G.729. G.729A and G.729B specs are in the clear.
>

Damn, there I was looking forward to next year... :(

-Steve



On 25 September 2011 17:34, Steve Underwood <steveu at coppice.org> wrote:

> That's a good question. Many of the patents listed in the ITU database
> have already expired. I think the last one in the ITU database to expire
> will be some time in 2016, so its pretty much 20 years after the spec
> was first published - i.e. people were patenting techniques used by the
> codec until close to its publication data. One or two of those final
> patents might be things you could design your way around. G.729A was
> published a little later, but I don't remember any patents specific to
> it. Not all the relevant patents are listed in the ITU database, so
> there might be further problematic ones, which won't expire until 2016.
>
> The bottom line seems to be that it will be something like 2015 or 2016
> before the G.729. G.729A and G.729B specs are in the clear.
>
> Steve
>
>
> On 09/25/2011 10:44 PM, curriegrad2004 wrote:
> > Steve, do you know around what year when the G.729 patents expire?
> >
> > On Sun, Sep 25, 2011 at 3:27 AM, Steve Underwood<steveu at coppice.org>
>  wrote:
> >> Hi,
> >>
> >> On 09/23/2011 12:42 AM, curriegrad2004 wrote:
> >>> There is no G729 trial codecs in FreeSWITCH. You need to pay royalties
> >>> to SIPPRO regardless. There's always the option of waiting until
> >>> somewhere 2014 for the patents to expire ;)
> >>>
> >> The last of the G.723.1 patents expires in 2014. There are G.729 patents
> >> running a bit longer than that, but its hard to find the exact date.
> >>
> >> Steve
>
>
>
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