Hello, With some trepidation I've come to inquire about platform requirements for * after having spent a couple of hours searching and browsing the archives and skimming the Handbook (very nice). I've found recommendations for 800-1000 Mhz and 128-256 MB RAM machines. My curiosity is not about what machine I need to start using * to support live comm ops. Rather, I want to know if a couple of dinosaurs that I have in the corner can be used to do some learning. I have a Pentium 133Mhz 16MB RAM box with PCI bus, and a Pentium 75Mhz 32MB RAM box with PCI bus. Will these boxes work for back-to-back experimentation with PRI in this configuration?: POTS phone-----[ * ]---PRI---[ * ]---POTS phone I assume that I'll need to get a couple line cards and a couple T1 cards. Thx, -- Mike M.
On Monday 02 June 2003 03:46 pm, Mike M wrote:> With some trepidation I've come to inquire about platform > requirements for * after having spent a couple of hours searching > and browsing the archives and skimming the Handbook (very nice). > I've found recommendations for 800-1000 Mhz and 128-256 MB RAM > machines. My curiosity is not about what machine I need to start > using * to support live comm ops. Rather, I want to know if a > couple of dinosaurs that I have in the corner can be used to do > some learning. > > I have a Pentium 133Mhz 16MB RAM box with PCI bus, and a Pentium > 75Mhz 32MB RAM box with PCI bus. Will these boxes work for > back-to-back experimentation with PRI in this configuration?: > > POTS phone-----[ * ]---PRI---[ * ]---POTS phone > > I assume that I'll need to get a couple line cards and a couple T1 > cards.First, they're going to have to be MMX. The 133 might be, but the 75 is definitely not. Normally you don't want to go much below a 200MHz processor for a base-level system; you could certainly try something slower, but not without MMX instructions. -Tilghman
On Mon, Jun 02, 2003 at 04:46:51PM -0400, Mike M wrote:> Hello, > > With some trepidation I've come to inquire about platform requirements > for * after having spent a couple of hours searching and browsing > the archives and skimming the Handbook (very nice). I've found > recommendations for 800-1000 Mhz and 128-256 MB RAM machines. My > curiosity is not about what machine I need to start using * to support > live comm ops. Rather, I want to know if a couple of dinosaurs that I > have in the corner can be used to do some learning. > > I have a Pentium 133Mhz 16MB RAM box with PCI bus, and a Pentium 75Mhz > 32MB RAM box with PCI bus. Will these boxes work for back-to-back > experimentation with PRI in this configuration?:It seems to me that the Digium cards are DSPless. That means the host CPU has to act as the DSP for all these lines. I'm thinking a low end Pentium *might* be able to handle one FXS and one FXO port simultaneously. I wouldn't try running a PRI card in one. Without compression you might be able to IAX the traffic onto a LAN connected to a WAN of some type. My 500Mhz celeron doesn't like to compile and take calls at the same time. DSPless hardware is cheap but you have to have a serious host CPU to make up for it.> POTS phone-----[ * ]---PRI---[ * ]---POTS phone > > I assume that I'll need to get a couple line cards and a couple T1 > cards.a couple of FXS cards and a couple of routers to handle a data T1/PRI. -- Scott Lambert KC5MLE Unix SysAdmin lambert@lambertfam.org