-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Scott Lawrence Sent: Wednesday, March 24, 2010 5:55 PM To: [email protected] Cc: sipx-users Subject: Re: [sipx-users] Packet loss Question
On Wed, 2010-03-24 at 19:28 -0500, [email protected] wrote: > So is the answer ultimately that it cannot handle any packet loss or a > tiny bit in order to not affect user to user calls over the Internet? Not at all. A typical media packet has only 10-40 milliseconds of media (depending on codec and settings). You can loose a couple of those and not hear it. The sensitivity to packet loss or other network effects (packet reordering or jitter, for example) are highly dependent on the capabilities of the endpoints. There are many different strategies for compensating for these things, some of which are quite sophisticated and leverage the way your brain fills in sensory gaps and compensates for background noise. Has anyone seen any documentation on the changing of the default jitter settings within the Polycom phones and their positive and negative effects. Is there any magic to the default setting that are set by sipXecs, or are they just from Polycom, or someone's best guess. I'd be curious if they are truly optimized, or if there is expected tweaking that one can do that is documented for different sets of circumstances. _______________________________________________ sipx-users mailing list [email protected] List Archive: http://list.sipfoundry.org/archive/sipx-users Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-users sipXecs IP PBX -- http://www.sipfoundry.org/
