bit/s Byte/min - bajt/min Byte/s ISDN 64 KB/min-Kilobajt/min KB/s-kilobajt/s Kb/s-Kilobit/s modem 9.6 modem 28.8 modem 33.6 modem 56.0 ISDN 64 k ISDN 128 k Mbit/s Gbit/s