Tim Panton wrote: >4Mbps => 1300GB/month. It is just an indication. If I remember right, thats >50 ulaw channels 24/7/365 . >The 100Mbps is the peak. > >I'm _really_ not selling this stuff, just a quite satisfied customer :-) > > Your big error is shown in step 1) below. Divide the 1300GB by 2 since half is transmit and half receive. This is voip, not a multimedia download center.
I have seen a wide range of products from basic shared web hosting to multi-cpu dedicated servers offered with bandwidth measured in bytes transferred. 1) The usual practice is to count bytes transferred in both directions. Divide the monthly total by 2. 2) Average year is 365.25 days so average month is 2629800 seconds. Divide result from previous step by this number. 3) Now you have BYTES per second. Multiply by 8 to get bits per second. So I did it generously. Used 1024 * 1024 * 1024 as a GB and I find it equivalent to 2123149 bits per second. Without IAX2 trunking that is about 23 ulaw channels using a 90kbs per channel factor. If the price seems like quite a bargain ask the vendor if he is prepared to let you run 2 megabits in each direction continually at his package price. If you don't control your own bandwidth you can be billed for overage. Some providers allow a ridiculous option that simply shuts you down when you reach the monthly limit. I buy my bandwidth at data centers strictly by the megabit per second. I ask for a clear understanding in writing that I will never be billed for more than I buy. That means it is up to the vendor and his router wizards to prevent me from bursting. So far they haven't done so. I think they wait until my average usage gets higher before actually choking the feed to my rack. Meanwhile I sometimes burst at 10x or more when doing remote backups. _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-biz mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-biz
