Noah Miller wrote: > Hi Edd - > > >> I run a couple of asterisk servers all connecting >> to international sip providers. >> All three servers are on the same type of internet connection >> (Martis/Diginet). >> There isnt a shortage of bandwidth, and its not a codec issue, as ive >> tried swapping codecs. >> If its not a line issue, because if i route the calls via sip via >> another server(which i own)(in same country) and then break out from >> there i get good quality, but im paying for triple bandwidth then, and >> bandwidth in south Africa is hellishly expensive. >> The Physical hardware is not overloaded either. >> I have tried rebooting my equipment, and that changed nothing either. >> if i do a ping flood i get decent results(well, only about 10ms more >> than another perfectly working branch) >> >> What else could this Be? >> Im completely Dumbstruck. >> > > Is there any other non-VoIP traffic using the same internet connection > as the asterisk server? If so, this could very well be a QoS issue. > You can get some nasty sounding calls even on a very fat internet > connection if there is no QoS. One of my clients has a 100mb fiber > connection to the internet, and we had to really fine tune their Cisco > routers in order to get usable VoIP calls to their branch offices. > > I've also seen internet connections that are just very poor, and no > amount of internal QoS can fix this. > > What kind of routing equipment are you using? > > > - Noah > Im Using a cisco, but the internet connection is dedicated to VOIP.
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