[Asterisk-Dev] Help IP phone project

[Steve Underwood]

Daniel Pocock wrote:

>
>>
>> People keeping saying the PA168 code is open, but it does not appear 
>> to be true. The only source I have seen available is a small fragment 
>> of the code needed to make a phone. The rest is supplied as compiled 
>> libraries. I'd love to hear it has been fully opened up, but so far I 
>> have seen no evidence of that.
>
>
> I suspect there are still some patented algorithms in there too, so 
> even though it is open, it may not be free to use or distribute in 
> some countries.

The codecs are patented, but I doubt that anything else is. That is a 
completely different issue from open code, anyway. The chipset is 
supposed to come with a licence to run the code, so the patents should 
have been licenced by buying the silicon. Using them away from the 
silicon would present a problem. The DSP in the PA168 is a 2181 clone, 
so apart from licencing issues many of the ADI DSP chips should be able 
to run it.

Regards,
Steve