Echo issue on OM2008.08 solved

Steve Mosher steve at
Sun Oct 12 08:53:04 CEST 2008

  Hi Michael,

   Here's some clarification

   I hope you find this helpful.


Michael Zanetti wrote:
> On Sunday 31 August 2008 15:50:05 Al Johnson wrote:
>> The patch turns on the echo and noise suppression capabilities in the GSM
>> chipset using one of the hidden and NDA's AT commands someone kindly posted
>> on the hardware list.
> Just for my understanding: I thought that on my openmoko-phone even the 
> hardware is supposed to be free and open. How can it be than, that there are 
> "hidden commands" and NDA's?
> I read somewhere (long time ago - before the FR reached its birthday) that 
> there might be some pieces of hardware not open such as the GSM chip. I guess 
> exactly this is the case. Could someone experienced to NDA's, copyright laws, 
> GPL violations and so on please explain me how exactly this is handled here?
> Thanks
> Michael
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