
V.250 AT COMMANDS
51 AT Commands for EV-DO-EV3 Modems
3 Error control optional; if error control can not be established, change data rate to
match line <carrier> rate and use direct mode.
4 Error control required; if error control cannot be established, disconnect.
5 Error control (LAPM) required; if LAPM cannot be established, disconnect.
6 Error control (alternate MNP) required; if MNP cannot be established, disconnect.
Notes
Execution command (AT+ES<CR>) return the OK result code.
Reference: V.25ter.
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