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AN93
68 Rev. 1.3
+FTM = X
Class 1 Transmit Carrier.
X
Mode
2 Transmit V.21 (980 Hz) tone and detect (2100/2225 Hz).
Stop transmit 980 Hz when (2100/2225 Hz is detected.
53 Same as &T4, but transmit V.29 7200 bps. Data pattern
set by S40 register. AT + FCLASS = 0 must be sent to
restore the ISOmodem to normal operation after test.
54 Same as &T4, but transmit V.29 9600 bps. Data pattern
set by S40 register. AT + FCLASS = 0 must be sent to
restore the ISOmodem to normal operation after test.
95 V.29 short synchronous.
96 V.29 full synchronous.
201 Returns to data mode prepared to transmit an SMS pro-
tocol 1 message.
202 Returns to data mode prepared to transmit an SMS pro-
tocol 2 message.
Table 39. Basic AT Command Set (Continued)
Command Action