Dial-up connection also (mostly, nowadays) depends on the telephone line condition, if ur home is far from the BSNL Exchange, or even, far from the joint box where the underground cable connection ended, or, if there is any loose conenction, or short circuit due to rain etc., the net speed will suffer. If u can manage a shielded cable from BSNL upto ur modem (somehow I managed it!!) u will have 56k stable connection always (generally), although the peak sustainable net speed on Dialup is at most 6 Kilobytes per sec.