if <noptext_enable> is enable, #NOPT's setting value ignored and URC
message port specified by #NOPTEXT setting value.
AT#NOPTEXT?
Read command show current <mode> on all notification(URC) port in the following
format
#NOPTEXT: <noptext_enable>,<port1_enable>,<port2_enable>,<port3_enable>,...
AT#NOPTEXT=?
Test command returns the list of supported values in the following format
#NOPTEXT: (0,1),(<port1_descr>,(0,1)),(<port2_descr>,(0,1)),...
<port_descr>:
1. "UART_1" - UART 1 Port
2. "USB_MDM1" - Telit USB Modem 1 Port
3. "USB_MDM2" - Telit USB Modem 2 Port
4. "UART_2" - UART 2 Port
5. "CMUX_1" - Multiplexer DLCI1 Port
6. "CMUX_2" - Multiplexer DLCI2 Port
7. "CMUX_3" - Multiplexer DLCI3 Port
8. "CMUX_4" - Multiplexer DLCI4 Port