[Freeswitch-users] G.729

[Chad Vogel]

Check out: http://www.voiceage.com/prodg729.php

On Sep 25, 2011, at 11:38 AM, curriegrad2004 wrote:

> That's what I figured about anyways, +/- 2 years after G723.1 patents
> expire. No wonder they're ramping up the enforcement nowadays
> 
> On Sun, Sep 25, 2011 at 9:34 AM, 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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> 
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