--- title: Cellular Backhaul Commands (Sierra Wireless) description: "Command:  ati Example output: Command:  at!gobiimpref? Example output: Command: at+ccid Command: at+iccid Example output: To remove/disable/unlock the PIN for SIM: To Lock/Enable the SIM with PIN: Not" --- [Skip to content](https://knowledgehub.tektelic.com/cellular-backhaul-commands-sierra-wireless#main-content) English Show submenu for translations ![](https://knowledgehub.tektelic.com/hubfs/logo%20Tektelik.svg) Open main navigation Close main navigation - English Show submenu for translations - [Contact us](https://supporthub.tektelic.com/tickets-view) [Contact us](https://supporthub.tektelic.com/tickets-view?hsLang=en) Search Documentation - There are no suggestions because the search field is empty. 1. [Knowledge Hub](https://knowledgehub.tektelic.com/?hsLang=en) 2. [LoRaWAN Gateways](https://knowledgehub.tektelic.com/lorawan-gateways?hsLang=en) 3. [General Kona Gateway Information / Configuration](https://knowledgehub.tektelic.com/lorawan-gateways?hsLang=en#general-kona-gateway-information-configuration) # Cellular Backhaul Commands (Sierra Wireless) **Please note that the commands listed below are intended for debugging purposes. We do not recommend using below commands in conjunction with scripts to query or configure the modem as this has been known to cause issues with the gateway's connection manager.** ### **Requirements:** 1. Kona Gateway with Cellular Backhaul. **If you are unsure if your gateway features cellular backhaul, please consult the user guide for your gateway and cross-reference it with the T-code (i.e. T000XXYY) BEFORE proceeding with this article.** 2. SSH access to the gateway. This article will contain commands to configure the cellular backhaul of your Kona Gateway. These commands ONLY apply to gateways with Sierra Wireless modems. **To determine if your gateway has the correct modem model, please follow the below steps:** 1\. SSH into your gateway. 2\. Run the following command:  **konaLTEmodem.py -c 'ati'** ### Command Usage There are two ways to execute a command - in one line or within the script. 1. One line: **konaLTEmodem.py -c '\'** 2. Within the script: First enter "**konaLTEmodem.py**" by itself, then enter your command. ### Set APN There are two ways to set an APN - [through KonaFT](https://knowledgehub.tektelic.com/konaft-faq?hsLang=en) or through command-line. 1. In the command-line, enter the following command:  **at+cgdcont=1,"IP","\","0.0.0.0",0,0** 2. The **"1"** in the command indicates the profile index. To set the 2nd profile, replace it with a 2. ### Check APN profiles There are two ways to check APN profiles - [through KonaFT](https://knowledgehub.tektelic.com/konaft-faq?hsLang=en) or through command-line. 1. In the command-line, enter the following command:  **at+cgdcont?** 2. Example:  **konaLTEmodem.py -c '** **at+cgdcont?** **';** ### Check Modem Statistics Command:  **at!gstatus?** Example output: 1. ``` root@kona-micro:~# konaLTEmodem.py -c 'at!gstatus?'; at!gstatus? !GSTATUS: Current Time: 2240 Temperature: 45 Reset Counter: 31 Mode: ONLINE System mode: LTE PS state: Attached LTE band: B7 LTE bw: 10 MHz LTE Rx chan: 2800 LTE Tx chan: 20800 LTE CA state: NOT ASSIGNED EMM state: Registered Normal Service RRC state: RRC Connected IMS reg state: No Srv PCC RxM RSSI: -84 RSRP (dBm): -109 PCC RxD RSSI: -82 RSRP (dBm): -105 Tx Power: -- TAC: DACF (56015) RSRQ (dB): -7.0 Cell ID: 087A035D (142213981) SINR (dB): 13.6 OK ``` ### Check Modem status Command:  ati Example output: 1. ``` root@kona-micro:~# konaLTEmodem.py -c 'ati'; ati Manufacturer: Sierra Wireless, Incorporated Model: EM7455 Revision: SWI9X30C_02.30.01.01 r7792 CARMD-EV-FRMWR2 2018/07/13 02:24:52 MEID: 35907306215981 ESN: 12805526736, 805454D0 IMEI: 359073062159813 IMEI SV: 16 FSN: LF852183970110 +GCAP: +CGSM OK ``` ### Check Modem firmware Command:  **at!gobiimpref?** Example output: 1. ``` root@kona-micro:~# konaLTEmodem.py -c 'at!gobiimpref?'; at!gobiimpref? !GOBIIMPREF: preferred fw version: 02.30.01.01 preferred carrier name: GENERIC preferred config name: GENERIC_002.045_001 current fw version: 02.30.01.01 current carrier name: GENERIC current config name: GENERIC_002.045_001 OK ``` ### Check ICCID Command: **at+ccid** Command: **at+iccid** Example output: 1. root@kona-micro:~# konaLTEmodem.py -c 'at+iccid' at+iccid ICCID: \[string of numbers\] OK ### Check SIM Status Command:  **at+cpin?** Example output: 1. :at+cpin? at+cpin? +CPIN: READY OK ### Check Active SIM slot Command:  **at!uims?** Example output: 1. :at!uims? at!uims? !UIMS: 0 OK ### Change Active SIM slot Command: **at!uims=\[0/1\]** Example output: 1. :at!uims=1 at!uims=1 OK ### Checking if SIM is locked with PIN Command:  **at+clck="sc",2** Check output. 1. **+CLCK: 0** means that the **SIM is NOT LOCKED.** 2. **+CLCK: 1** means that the **SIM is LOCKED.** Example output: 1. :at+clck="sc",2 at+clck="sc",2 +CLCK: \[0 or 1\] Lock/Unlock SIM with PIN **To remove/disable/unlock the PIN for****SIM****:** Command:  **at+clck="sc",0,"\"** Example output: 1. :at+clck="sc",0,"\" at+clck="sc",0,"\" OK **To Lock/Enable the****SIM****with PIN:** Command:  **at+clck="sc",1,"\"** Example output: 1. :at+clck="sc",1,"\" at+clck="sc",1,"\" OK ### Enter SIM PIN: Command: **at+cpin=** **\** ### Change SIM PIN: Command:  **at+cpwd="SC","\","\"** Example: Changing SIM PIN to "1234" 1. :at+cpwd="SC","0000","1234" at+cpwd="SC","0000","1234" OK **Note:** **If the user enters wrong PIN, after 3 tries (3 bootup), the****SIM****will be locked. To unlock the****SIM****, user has to obtain "****PUK****" code from the cellular provider.** **Once they get the "****PUK****" then they have to use this****PUK****and set the new****SIM****PIN. Then they can start using this new****SIM****PIN. This can be done using "AT" commands.** Example locked output: 1. :at+cpin? at+cpin? +CPIN: SIM PUK OK Changing PIN with PUK: 1. :at+cpin="77700212","1234" at+cpin="77700212","1234" OK Verify that SIM is not locked: 1. :at+cpin? at+cpin? +CPIN: READY OK   - [Building Your First LoRaWAN Network](https://knowledgehub.tektelic.com/building-your-first-lorawan-network?hsLang=en#main-content) - [Tektelic LNS Quick Start Guide](https://knowledgehub.tektelic.com/building-your-first-lorawan-network?hsLang=en#tektelic-lns-quick-start-guide) - [Tektelic LoRaWAN Gateway Quick Start Guides](https://knowledgehub.tektelic.com/building-your-first-lorawan-network?hsLang=en#tektelic-lorawan-gateway-quick-start-guides) - [Tektelic LoRaWAN Sensor Quick Start Guides](https://knowledgehub.tektelic.com/building-your-first-lorawan-network?hsLang=en#tektelic-lorawan-sensor-quick-start-guides) - [Kona ATLAS](https://knowledgehub.tektelic.com/building-your-first-lorawan-network?hsLang=en#kona-atlas) - [LoRaWAN Gateways](https://knowledgehub.tektelic.com/lorawan-gateways?hsLang=en#main-content) - 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