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Series 3: How to Configure and Use SMS on capable Cradlepoint routers

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Series 3: How to Configure and Use SMS on capable Cradlepoint routers

Products Supported: AER21x0, MBR1400v2, MBR1400v1, CBA850, CBA750B, IBR11x0, IBR6x0 & IBR350. Click here to identify your router.

Firmware version 6.0 has been released and introduces a vastly improved GUI for all current Series 3 routers.  Cradlepoint has created new Knowledge Base articles with updated screen shots and instructions for the new GUI layout.  As a result, this article has received its final update.  To view the version of this Knowledge Base article for Firmware 6.0 and Later please, click here.

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Beginning in firmware version 5.x.x, select Cradlepoint routers offer SMS capabilities for limited remote management features. This article is intended to provide steps to configure and use the SMS feature. Please verify with your mobile data carrier that SMS functionality is enabled on your mobile data plan. Please contact your mobile data carrier for information on text messaging rates and options so that you are fully aware of any potential expenses that may occur.

Cellular Modems communicate with the network across two channels, which is what allows the use of SMS communication even when the modem does not have an active data connection. However, there are some caveats to the use of SMS for management purposes that must be considered by an administrator.

  • SMS messages are limited to 160 characters which is useful to be aware of depending on what information you are requesting from the router. Pulling logging info from the router via SMS is possible, but will entail multiple messages, as each line of a log entry has the potential to be longer than 160 characters.
  • SMS is not a guaranteed delivery protocol. Carriers are unable to guarantee that the message will be delivered to the modem or that the response from the modem will be delivered to the sender.
  • SMS messages are slow and can take anywhere from seconds to minutes to be delivered.
  • SMS is not an encrypted protocol and all information is sent in clear text across the network. This includes passwords which are sent with every command string.

To utilize the SMS feature, you will need to know the Mobile Device Number (MDN) of the modem. This can be obtained under Status > Internet Connections in the CradlePoint’s Administration Pages. Select the Internal Modem and the MDN will be located in the Diagnostics section for the modem.

Note: SMS is only supported on LTE-capable modems.


Configuration Difficulty: Beginner

Configure SMS

  • Step 1: Log into the router's Setup Page. For help with logging in please click here.
  • Step 2: Click on System Settings and select Administration from the drop-down menu.
  • Step 3: Select SMS in the left hand column.
    • Note: By default SMS Support is enabled.
    • Note: By default the SMS Password is the last 8 characters of the Routers MAC address.
  • Step 4: Set the SMS Password.
    • Note: As mentioned above, SMS is sent in clear text. CradlePoint recommends utilizing a unique password for SMS that is separate from any password you use for security purposes.
  • Step 5: Click Add to create a White List entry.
    • Note: White Listing specific Phone Numbers will increase security and is strongly recommended to be utilized.
  • Step 6: Enter the 10 Digit Phone Number of the desired White List entry.
  • Step 7: Click Submit.
  • Step 8: Repeat Steps 5 through 7 for all desired White List entries.
  • Step 9: Click Apply.

Obtain Router MDN

  • Step 1: Click on Status and select Internet Connections from the drop-down menu.
  • Step 2: Select the Modem Interface from the Device List.
  • Step 3: Under Summary the Mobile Directory Number will be listed.

Use Cases

SMS Syntax Overview

The basic command syntax for SMS is: ,,[arg1,][arg2,]

All SMS commands are preceded by the SMS Password. Additionally, the trailing comma is mandatory as it tells the Router that this is the end of the command string.

Supported Commands

Command     Description                                             Example                                 Example Arguments       Example Response

help        Receive a list of commands                              1234,help,

reboot      Reboot the router                                       1234,reboot,

restore     Factory reset the router                                1234,restore,

rstatus     Get router status                                       1234,rstatus,                                                   uptime:5:15:10 FW: v5.0.0 eth0: 10/100 Ethernet Switch: connected int1: Internal LTE/EVDO: connected

mstatus     Get modem status                                        1234,mstatus,                           int1, usb1, modem1      Model: Internal LTE/EVDO Service: LTE SIM Status: READY RSSI: -62 dbm SINR: 13 APN: vzwinternet IP Addr:

mreboot     Reboot the modem                                        1234,mreboot,                           int1, usb1, modem1

apn         Set the APN on the modem                                1234,apn,broadband,int1,                int1, usb1, modem1

userpass    Set the modems authentication username and password     1234,userpass,joe,mypassword,int1,      int1, usb1, modem1

simpin      Set the modems SIM PIN                                  1234,simpin,9876,int1,                  int1, usb1, modem1

log         Return a portion of the router log                      1234,log, - return the top 10 items     
                                                                    1234,log,10, - return log entries 10 through 20

NOTE: Sending log information via SMS will result in multiple SMS messages being sent, as each log entry can potentially exceed one text message character limit.

NOTE: Any time a port (int1, usb1, modem1) argument is passed it is optional. If not specified the command will apply to the highest priority modem interface.

Related Articles/Links

Published Date: 10/23/2015

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