ATS0=2         ATZS7=45 B1&G0S7=70X4E1M1&R2       +++ 20><20><20>                    ATH0                               B1             B0             ATD                           P              T              <0D>            1              4              3 3            3 3            5 4                           OK             CONNECT 300                        CONNECT 1200                        ONNECT 1275 00                     ONNECT 1275 75                    CONNECT 2400                       CONNECT 9600/ARQ                   RING NG        NO CARRIER     NO DIALTONE    BUSY               pp