On Tue, 01 Oct 2002 14:18, Alan Greenstreet wrote: The main problem with using ordinary cheap consumer level modems from overseas on the NZ POTS is that the line impedence is not correctly matched to the modem. For short line runs in the towns, it doesn't matter, but for long lines many kilometres in length it is pretty crucial.
My suggestion for a start is to use as slow a data rate as the customer will tolerate. You can set this in the modem's setup string. Then experiment with an impedence matching transformer. > The other possibility is to contact Telecom themselves. Coming from a > rural location in the UK I suffered for years with bad lines. I assumed > this was just the way it was. > > I eventually got so fed up with it that I contacted the telecom provider > and complained. They were able to increase the gain on the phone line > (there were 3 or 4 options). This improved my dropout rate no end. > > I'm not sure whether this would be available here but it may be worth a > phone call. They didn't advertise this service in the UK as I suppose it > means more power consumption for them and possible maintenance issues. > > Worth a call before you spend $more_than_i_needed_to on a 'special' > modem. > > Alan > > Yuri de Groot wrote: > > Wow - they do exist! > > Thanks for all the replies - I'm now looking into buying one for myself. > > According to the dynalink web site they're external, serial, "real > > hardware" modems, so they'll work with linux. > > They come with some discount internet deal with my employer's competitor, > > so I'll pass up on that offer. > > > > I'll have to shop around as the rrp likes quite high. > > I'll also have a possible solution to suggest to customers experiencing > > connection problems. > > > > Finally my linux box will be faster than my wife's win 98 box - woohoo! > > > > Yuri -- Sincerely etc., Christopher Sawtell
