[Freeswitch-users] G.729

[Steve Underwood]

On 09/26/2011 10:17 AM, Chad Vogel wrote:
> Check out: http://www.voiceage.com/prodg729.php
Is there supposed to be something interesting amongst the ads on that 
page? If so, it might have been helpful to point it out.

Steve

> 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
>>>