On 7 June 2012 12:39, Adrian Kennard <[email protected]> wrote: > On 07/06/12 12:30, Justin Finkelstein wrote: > > > > I have to say though: I don't know much about VoIP or the amount of > > bandwidth it requires, so I thought here would be a good place to ask. > > An uncompressed a-law audio stream is 64k/s but obviously as 20ms > RTP/UDP/IP/Ethernet packets it has some overhead which can nearly double > that. Compression saves some, and so do multiplexing protocols like IAX, > carrying several calls at once. A slow broadband line of 2Mb/s was same > capacity as an ISDN 30 (i.e. 30 calls at once). > > Lots of VoIP is not going to make much difference - the big issues are > streaming video >
Good point - I hadn't thought of that. If we consider streaming video (within the context of communications) we're then talking about 2-way live video feeds. I imagine at this point, the bandwidth requirements would jump rather considerably and the ability to shape/prioritise this traffic would become more complex as (IIRC) we're not just talking about small UDP packets any more. Am I correct in my assumptions?
