The termination character is fixed as CR (ASCII 13).
Command line editing is supported (BS, ASCII 08 only).
Command line repeats (A/) is not supported.
The rules described below for buffering and flow control also apply to command mode. The Host should not transmit a single AT command which exceeds the buffer length (256 characters). In addition, the Host should wait until all responses associated with an AT command string have been received before issuing another AT command.
Abortion of command-in-progress is not supported.
Default command parameters are accepted for the last command on a command line only.