If its only once i can cope with it.... so will most people be able to.... but i can assure you that everything i found on it, indicates that it will check for authentication every half hour or so....
And yes, while africa has internet, its not permanent connections... and dialup is expensive... dialup to a local number (less than 50km) currently costs R 27.00 per hour. To $ its $4.50 per hour!!!!