[asterisk-dev] code-cleanup concerns

[Adrian Sietsma]

Matt Ranney wrote:
  > Somehow the jitter buffering or packet loss concealment or whatever
> magic that Skype uses makes it work better than asterisk/IAX over the  
> same WAN link.
Having done some testing of voip over WAN, I would say it is both. I have 
seen packet loss of up to 20-30% (using a CDMA wireless card). Skype's 
codecs, including iLBC, seem very tolerant of packet loss.

Their client also has effective echo suppression, which makes using it 
without a headset fairly painless.

Asterisk is also very prone to jitter problems, if I understand correctly. 
Since outgoing RTP packets are triggered by incoming, that would reflect any 
incoming jitter back to the sender, as well as passing it on. Issue 5374 
should solve this.


Adrian