$ gnokii --getsms SM 1
GNOKII Version 0.6.3
LOG: debug mask is 0x1
phone instance config:
model: AT
port_device: /dev/input/ttyACM0
connection_type: 0
init_length: 0
serial_baudrate: 19200
serial_write_usleep: -1
hardware_handshake: 0
require_dcd: 0
smsc_timeout: 300
connect_script: 
disconnect_script: 
rfcomm_cn: 1
Initializing AT capable mobile phone ...
Serial device: opening device /dev/input/ttyACM0
Serial device: setting RTS to high and DTR to high
Message sent: 0x00 / 0x0004
41 54 5a 0d                                     | ATZ             
write: [ATZ<cr>]
Message sent: 0x00 / 0x0005
41 54 45 31 0d                                  | ATE1            
write: [ATE1<cr>]
read : [ATE1<cr><cr><lf>OK<cr><lf>]
Message received: 0x00 / 0x000b
02 41 54 45 31 0d 0d 0a 4f 4b 0d                |  ATE1   OK      
Received message type 00
Message sent: 0x00 / 0x000a
41 54 2b 43 4d 45 45 3d 31 0d                   | AT+CMEE=1       
write: [AT+CMEE=1<cr>]
read : [AT+CMEE=1<cr><cr><lf>OK<cr><lf>]
Message received: 0x00 / 0x0010
02 41 54 2b 43 4d 45 45 3d 31 0d 0d 0a 4f 4b 0d |  AT+CMEE=1   OK 
Received message type 00
Message sent: 0x06 / 0x0008
41 54 2b 43 47 4d 4d 0d                         | AT+CGMM         
write: [AT+CGMM<cr>]
read : [AT+CGMM<cr><cr><lf>+CGMM: "GSM900","GSM1800","GSM1900","GSM850","MODEL=C350"<cr><lf><cr><lf>OK<cr><lf>]
Message received: 0x06 / 0x004b
02 41 54 2b 43 47 4d 4d 0d 0d 0a 2b 43 47 4d 4d |  AT+CGMM   +CGMM
3a 20 22 47 53 4d 39 30 30 22 2c 22 47 53 4d 31 | : "GSM900","GSM1
38 30 30 22 2c 22 47 53 4d 31 39 30 30 22 2c 22 | 800","GSM1900","
47 53 4d 38 35 30 22 2c 22 4d 4f 44 45 4c 3d 43 | GSM850","MODEL=C
33 35 30 22 0d 0a 0d 0a 4f 4b 0d                | 350"    OK      
Received message type 06
Message sent: 0x06 / 0x0008
41 54 2b 43 47 4d 49 0d                         | AT+CGMI         
write: [AT+CGMI<cr>]
read : [AT+CGMI<cr><cr><lf>+CGMI: "Motorola CE, Copyright 2000"<cr><lf><cr><lf>OK<cr><lf>]
Message received: 0x06 / 0x0036
02 41 54 2b 43 47 4d 49 0d 0d 0a 2b 43 47 4d 49 |  AT+CGMI   +CGMI
3a 20 22 4d 6f 74 6f 72 6f 6c 61 20 43 45 2c 20 | : "Motorola CE, 
43 6f 70 79 72 69 67 68 74 20 32 30 30 30 22 0d | Copyright 2000" 
0a 0d 0a 4f 4b 0d                               |    OK           
Received message type 06
Message sent: 0x59 / 0x0009
41 54 2b 43 53 43 53 3f 0d                      | AT+CSCS?        
write: [AT+CSCS?<cr>]
read : [AT+CSCS?<cr><cr><lf>+CSCS: "ASCII"<cr><lf><cr><lf>OK<cr><lf>]
Message received: 0x59 / 0x0021
02 41 54 2b 43 53 43 53 3f 0d 0d 0a 2b 43 53 43 |  AT+CSCS?   +CSC
53 3a 20 22 41 53 43 49 49 22 0d 0a 0d 0a 4f 4b | S: "ASCII"    OK
0d                                              |                 
Received message type 59
Initialisation completed
Message sent: 0x00 / 0x000d
41 54 2b 43 50 4d 53 3d 22 53 4d 22 0d          | AT+CPMS="SM"    
write: [AT+CPMS="SM"<cr>]
read : [^B^D+CPMS="SM"<cr><cr><lf>+CMS ERROR: 516<cr><lf>]
Message received: 0x00 / 0x0020
04 02 04 2b 43 50 4d 53 3d 22 53 4d 22 0d 0d 0a |    +CPMS="SM"   
2b 43 4d 53 20 45 52 52 4f 52 3a 20 35 31 36 0d | +CMS ERROR: 516 
Received message type 00
GetSMS SM 1 failed! (Unknown error - well better than nothing!!)
Serial device: closing device