Re: [Gumstix-users] Re: VoIP Stix Idea

[Craig H. <cr...@hu...>]

On Mar 3, 2005, at 6:53 AM, Dominic J. Eidson wrote:

>
> On Mar 2, 2004, Craig Hughes Wrote:
>
>> On Mar 2, 2005, at 7:26 AM, Daniel Morrigan wrote:
>>
>>> 3.  Push button answer.  One button on the device. Add a button from  
>>> a
>>> GPIO to VCC on the Audiostix.
>>
>> Should be pretty easy to hook up using the unpopulated X4 connector on
>> the audiostix.  Just reconfigure either Y0 or Y1 or both to be GPIOs,
>> and you have up to 4 switches or LEDs which can be read/controlled by
>> GPIO.
>
> Alternately, if you want to do any kinds of outbound dialing, a small
> serial-based keypad could come in handy...

2 serial lines there on 4 wires.  So you can use one serial line for a  
keypad, and still have a switch and an LED, or 2 switches.  You don't  
need a keypad if we can find a voice-recognition lib which is accurate  
enough to know how to read {0,1,2,3,4,5,6,7,8,9,#,*}.  Though first  
version probably would want to have some simpler dialling interface  
than VR.  Actually for rev.1, even a serial keypad is complicated :)  I  
think since there's going to be wifi or ethernet there anyway, might as  
well just dial from a web page or login prompt for now.

>>> 4.  802.11b compatible. (Done - Connex w/CF adapter)
>>>
>>> The software needed is very simple.
>>> 1.  Web based configuration for the VoIP client (Done - Boa installed
>>> already)
>>> 2.  Small footprint VoIP client that provides SIP or IAX
>>
>> I think this last one is pretty much the only thing that"s not
>> trivially easy or already there.
>
> The big problem would be integer versions of the codecs - I looked into
> this after a discussion in #asterisk one day - libiax2 and iaxclient  
> are
> two places to start looking. Getting the codecs to work (ulaw/alaw and  
> gsm
> already exist as integer versions, just have to find the code) is  
> probably
> the most interesting (read: tricky) part of it.

There are integer codecs for some stuff in libmad I think.

>>> Would anyone be interested in assisting with a project like this?
>>
>> Yup
>
> There's a reason I tacked an audiostix onto my gumstix order... ;-)
>
>
>  - d.
>
> -- Dominic J. Eidson
>                                         "Baruk Khazad! Khazad  
> ai-menu!" - Gimli
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