If <rate> specified DTE-DCE speed fixed to that speed, hence no speed auto-
detection (autobauding) enabled.
AT+IPR=?
Test command returns the list of supported auto detectable <rate> values and the
list of fixed-only <rate> values in the format:
+IPR:(list of supported auto detectable <rate> values), (list of fixed-only <rate>
values)
AT+IPR=?
+IPR:
(300,600,1200,2400,4800,9600,19200,38400,57600,115200,230400,460800,921600,200
0000,2500000,3000000,3500000,3750000),(300,600,1200,2400,4800,9600,19200,3840
0,57600,115200,230400,460800,921600)
OK