[Asterisk-Users] Asterisk VS. Skype

[Steve Underwood]

Mathieu Nantel wrote:

>  
>
>>Skype has almost unperceptible delay (LAN), while there is almost half a
>>second of delay regardless of the codec on Asterisk.
>>    
>>
Something must have been misconfigured. Using *, the delay is normally 
not too much greater than the medium.

>AS I SAID in one of my previous posts in response to my original question: I 
>was using Firefly/ULAW against IAX Phone 0.2.0/GSM. GSM was the culprit. I 
>apologize and bow before the list and beg everyone's pardon for blasphemously 
>talking about Skype.
>  
>
Well, even if your setup was using GSM there is something more wrong 
with your tests. The quality of iLBC and GSM are pretty similar if your 
packet loss is low. The much greater complexity of the iLBC codec, and 
its higher bit rate, is aimed at achieving a lower degradation of 
quality when paclets are lost.

>>An even if we were to eliminate the latency on asterisk, Skype has at
>>least 2x the quality of PSTN, let alone any codec on asterisk.
>>    
>>
This is totally bogus. No test of iLBC ever found a conclusion like that 
:-\ In fact very few VoIP solutions even approach the quality of a PSTN 
call. Go to the GIPS sites and look at their own claims for quality scores.

[...]

Regards,
Steve