Manual
     Smart Machine Smart Decision 
SIM800 Series_AT Command Manual_V1.09  221  2015-08-03 
8.2 Detailed Descriptions of Commands 
8.2.1 AT+CIPMUX Start Up Multi-IP Connection 
AT+CIPMUX Start Up Multi-IP Connection 
Response 
+CIPMUX: (0,1) 
OK 
Test Command 
AT+CIPMUX=? 
Parameters 
See Write Command 
Response 
+CIPMUX: <n> 
OK 
Read Command 
AT+CIPMUX? 
Parameters 
See Write Command 
Response 
OK 
Write Command 
AT+CIPMUX=<
n> 
Parameters 
<n> 0 Single IP connection 
  1 Multi IP connection 
Parameter Saving 
Mode 
NO_SAVE 
Max Response 
Time 
- 
Reference 
Note 
  Only in IP initial state, AT+CIPMUX=1 is effective; 
  Only when multi IP connection and GPRS application are both shut 
down, AT+CIPMUX=0 is effective. 
8.2.2 AT+CIPSTART Start Up TCP or UDP Connection 
AT+CIPSTART Start Up TCP or UDP Connection 
Test Command 
AT+CIPSTART=
? 
Response 
1) If AT+CIPMUX=0 
+CIPSTART: (list of supported <mode>),(<IP address>),(<port>) 
+CIPSTART: (list of supported <mode>),(<domain name>),(<port>) 
OK 
2) If AT+CIPMUX=1 
+CIPSTART: (list of supported <n>),(list of supported <mode>),(<IP 
address>),(<port>) 
+CIPSTART: (list of supported <n>),(list of supported <mode>),(<domain 










