[Asterisk-Users] why even use SIP

Shaun Dwyer shaund at wadata.com.au
Mon Mar 21 19:52:08 MST 2005


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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