[Asterisk-Users] why even use SIP

[Shaun Dwyer]

Hi Scott,

Intresting to know, cheers :)

Only down side though, is that most people using softphones will be 
using Windows...
If only ALSA was available for windows ;)

-Shaun

Scott Williamson wrote:

>That should be the program alsamixer, not amixer. Make sure to press F5
>to get all of the playback/capture devices shown.
>
>On Mon, 2005-21-03 at 22:02 -0500, Scott Williamson wrote:
>  
>
>>Ah, Console sound card echo.
>>
>>I found that with my cheep YMFPCI sound card that there is a channel
>>called "wave capture" that is enabled for recording by default. And this
>>is only visible when one uses ALSA sound drivers. One needs to use an
>>ALSA mixer control program (I use amixer, the text mode one) to disable,
>>or reduce the volume on these sound cards. Once this is done there is no
>>more echo at all!
>>
>>Why this channel does not appear under OSS, and why it appears to be
>>enabled by default in the hardware is beyond me. The GUI mixers all list
>>this channel simply as WAVE, and I have two WAVE channels. So remember
>>amixer.
>>
>>The card is called ICEnsemble ICE1230 by OSS, and Yamaha DS-XG (YMF734)
>>by ALSA
>>
>>On Tue, 2005-22-03 at 10:52 +0800, Shaun Dwyer wrote:
>>    
>>
>>>Scott Bussinger wrote:
>>>
>>>      
>>>
>>>>We just tried to go entirely with softphones in our office gave up after a
>>>>month or so of trying. I tried probably 10 different softphones running on
>>>>3.0Ghz WinXP machines and none of them were workable. I tried both SIP and
>>>>IAX2 softphones using headsets plugged into the audio ports, USB headsets,
>>>>and USB phone interface boxes (www.phoneconnector.com).
>>>>
>>>>While it wasn't hard to get them to work and the concept would have been
>>>>perfect in our environment, the quality was _terrible_! We had many issues
>>>> 
>>>>
>>>>        
>>>>
>>><snip>
>>>
>>>I found that for the most part, crappy sounds cards caused the bulk of 
>>>problems with soft phones.
>>>I noticed that on, for example, intel D865PERLL motherboards with an 
>>>onboard realtek AC97 sound
>>>device, There was heaps of echo for the remote end (using a softphone or 
>>>a hardphone).
>>>
>>>I also found that a stock standard Creative PCI 128 sound card gave 
>>>great results.
>>>
>>>Given PCI128s arn't available anymore, I'm sure you could find an 
>>>alternative, like perhaps
>>>even going as far as a SB Live Value.. if you buy these in bulk, im sure 
>>>you can get em cheap
>>>as chips.
>>>
>>>I've only ever used X-lite as a soft phone and found it to be really 
>>>very good.
>>>
>>>Cheers,
>>>-Shaun
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>>>      
>>>
>>--
>>Scott J. Williamson <scott at sjwilliamson.ca>
>>
>>Not every problem someone has with his girlfriend is necessarily due to
>>the capitalist mode of production. -- Herbert Marcuse 
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>>    
>>
>
>--
>Scott J. Williamson <scott at sjwilliamson.ca>
>
>Humor in the Court: Q: The truth of the matter is that you were not an
>unbiased, objective witness, isn't it. You too were shot in the fracas?
>A: No, sir. I was shot midway between the fracas and the naval. 
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>