[asterisk-users] ISAC and Asterisk

[Steve Underwood]

On 08/01/2011 07:43 PM, Kevin P. Fleming wrote:
> On 08/01/2011 04:12 AM, CB wrote:
>>> On Thu, Jul 21, 2011 at 06:29:38AM +1200, CB wrote:
>>>> Are there any plans to include the ISAC codec in Asterisk? Is it
>>> possible or
>>>> even desirable? Is ISAC open source (nothing indicates it is from the
>>> WebRTC
>>>> website http://www.webrtc.org)?
>>>
>>> What do you need it for?
>>>
>> The possibility of having a web-based softphone without requiring any
>> plug-in is interesting. The adaptive nature of the ISAC codec could also
>> prove useful. I see lots of possibilities in the mobile device space.
>>
>> I guess the lack of responses gives me the answer anyway!
>
> The IETF Opus codec is nearing completion, and it is very likely that 
> it will be incorporated into the WebRTC stack soon after that. Given 
> that, there's not much reason to spend time working on ISAC.
>
A counter argument to that might be that Opus is fresh and new and 
nobody knows what patent issues might come crawling into view. iSAC has 
been around for a while. The source wasn't open until recently, but 
licenced users have had it for a long time. There has been much more 
opportunity for patent issues to show up.

Steve