low. Long cable runs of over 5 or 6 miles can cause it, as can very old analog carrier systems. 14.4Kbps (ITU-T V.32bis and V.34 protocols) This is the minimum speed that a V.34 modem should be able to connect at *if* the telephone line is just able to meet specs. If this speed cannot be obtained either the modem is defective or the line is out of spec in some