Unsolicited Result Codes
| URC | Description | AT Command |
| +CRING: <type> |
Indicates incoming call to the TE if extended format is enabled. |
AT+CRC=1 |
| +CREG: <stat>[,<lac>,<ci>,<netact>] |
There is a change in the MT network registration status or a change of the network cell. |
AT+CREG=<n> |
| +CMTI: <mem3>,<index> | Indicates that new message has been received. |
AT+CNMI <mt>=1 |
|
+CMTI: <mem3>,<index>, “MMS PUSH” |
Indicates that new MMS message has been received. |
AT+CNMI <mt>=1 |
| +CMT: <length><CR><LF><pdu> | Indicates that new message has been received. |
AT+CNMI <mt>=2 (PDU mode) |
|
+CMT: <oa>,<scts>[,<tooa>,<fo>, <pid>,<dcs>,<sca>,<tosca>, <length>]<CR><LF><data> |
Indicates that new message has been received. |
AT+CNMI <mt>=2 (text mode) |
| +CBM: <length><CR><LF><pdu> | Indicates that new cell broadcast message has been received. |
AT+CNMI <bm>=2 (PDU mode enabled): |
|
+CBM: <sn>,<mid>,<dcs>,<page>, <pages><CR><LF><data> |
Indicates that new cell broadcast message has been received. |
AT+CNMI <bm>=2 (text mode enabled): |
| +CDS: <length><CR><LF><pdu> | Indicates that new SMS status report has been received. |
AT+CNMI <ds>=1 (PDU mode enabled): |
| +CDS: <fo>,<mr>[,<ra>][,<tora>],<sct s>,<dt>,<st> | Indicates that new SMS status report has been received. |
AT+CNMI <ds>=1 (text mode enabled): |
|
*PSNWID: “<mcc>”,”<mnc>”,“<full network name>”,<full network name CI>,”<short network name>”, <short network name CI> |
Refresh network name by network. | AT+CLTS=1 |
|
*PSUTTZ: <year>,<month>,<day>, <hour>,<min>,<sec>, “<time zone>”,<dst> |
Refresh time and time zone by network. | |
| +CTZV: “<time zone>” | Refresh network time zone by network. | |
| DST: <dst> | Refresh Network Daylight Saving Time by network. | |
| +CPIN: <code> | Indicates whether some password is required or not. | AT+CPIN |
| +CPIN: NOT READY | SIM Card is not ready. | |
| +CPIN: NOT INSERTED | SIM Card is not inserted. | |
| +CUSD: <n>[,<str_urc>[,<dcs>]] |
Indicates an USSD response from the network, or network initiated operation. |
AT+CUSD=1 |
| NORMAL POWER DOWN | SIM7000 is powered down by the PWRKEY pin or AT command “AT+CPOWD=1”. | |
| UNDER-VOLTAGE POWER DOWN | Under-voltage automatic power down. | |
| UNDER-VOLTAGE WARNNING | under-voltage warning | |
| OVER-VOLTAGE POWER DOWN | Over-voltage automatic power down. | |
| OVER-VOLTAGE WARNNING | over-voltage warning | |
| RDY |
Power on procedure is completed, and the module is ready to operate at fixed baud rate. (This URC does not appear when auto-bauding function is active). |
AT+IPR=<rate> <rate> is not 0 |
| +CFUN: <fun> |
Phone functionality indication (This URC does not appear when auto-bauding function is active). |
AT+IPR=<rate> <rate> is not 0 |
| [<n>,]CONNECT OK | TCP/ UDP connection is successful | AT+CIPSTART |
| CONNECT | TCP/UDP connection in channel mode is successful | |
| [<n>,]CONNECT FAIL | TCP/UDP connection fails | AT+CIPSTART |
| [<n>,]ALREADY CONNECT | TCP/UDP connection exists | AT+CIPSTART |
| [<n>,]SEND OK | Data sending is successful | |
| [<n>,]CLOSED | TCP/UDP connection is closed | |
|
RECV FROM: <IP ADDRESS>: <PORT> |
shows remote IP address and port (only in single connection mode) |
AT+CIPSRIP=1 |
|
+IPD,<data size>,<TCP/UDP>: <data> |
display transfer protocol in IP header to received data or not (only in single connection mode) |
AT+CIPHEAD AT+CIPSHOWTP |
| +RECEIVE,<n>,<length> |
Received data from remote client (only in multiple connection mode) |
|
| REMOTE IP: <IP ADDRESS> | Remote client connected in | |
|
+CDNSGIP: 1,<domainname>,<IP>[, <IP2>] |
DNS successful | AT+CDNSGIP |
| +CDNSGIP:0,<dns error code> | DNS failed | |
| +PDP: DEACT | GPRS is disconnected by network | |
| +APP PDP: ACTIVE | Active the network of app side | AT+CNACT=1 |
| +APP PDP: DEACTIVE | Deactive the network of app side | AT+CNACT=0 |
WiFi IoT Module
Bluetooth Module
5G/LTE/CAT-M1/NB-IoT
