TRB256 Mobile
The information in this page is updated in accordance with firmware version TRB2M_R_00.07.11.3.
Summary
The Mobile page is used to configure mobile connection settings.
This manual page provides an overview of the Mobile page in TRB256 devices.
If you're having trouble finding this page or some of the parameters described here on your device's WebUI, you should turn on "Advanced WebUI" mode. You can do that by clicking the "Advanced" button, located at the top of the WebUI.
General
The General section is used to configure SIM card parameters that define how the device will establish a mobile connection.
SIM card settings
The SIM Card Settings section is used to configure main SIM card parameters. Refer to the figure and table below for information on the fields contained in that section.
| Field | Value | Description |
|---|---|---|
| Default SIM | off | on; default: on | Sets this SIM slot as the default one. |
| Deny data roaming | off | on; default: off | Denies data connection on roaming conditions. |
| PIN | integer [0000..99999999]; default: none | SIM card's PIN (Personal Identification Number) is a secret numeric password used to authenticate the device to the SIM card. PIN codes are comprised of numbers only and the length can range from 4 to 8 symbols. PIN number is saved in flash memory therefore it does not reset when default settings are restored. |
Interface mob1s1a1 APN configuration
| Field | Value | Description |
|---|---|---|
| Auto APN | on | off; default: on | Auto APN scans an internal APN database and selects an APN based on the SIM card's operator and country. If the first automatically selected APN doesn't work, it attempts to use the next existing APN from the database ( APN database ) |
| APN | string; default: none | An Access Point Name (APN) is a gateway between a GSM, GPRS, 3G or 4G mobile network and another computer network. Depending on the contract, some operators may require you to use an APN just to complete the registration on a network. In other cases, APN is used to get special parameters from the operator (e.g., a public IP address) depending on the contract. An APN Network Identifier cannot start with any of the following strings:
|
| Authentication type | None | PAP | CHAP; default: None | Authentication method that your carrier uses to authenticate new connections on it's network |
| Username | string; default: empty | Username provided by your carrier |
| Password | string; default: empty | Password provided by your carrier |
Connection
Connection
| Field | Value | Description |
|---|---|---|
| Network Category | M1+NB auto | M1 only | NB only; default: M1+NB auto | Selects LTE category preference. Note: this field only becomes visible when Network type is set to 4G/2G auto | 4G only. |
| Band selection | Auto | Manual; default: Auto | Network frequency band selection method. When set to Auto, the device connects to the band with the best connectivity conditions, while Manual provides the possibility to manually select the bands which the device will obliged to use. Selecting bands manually shows their duplex modes for 4G and 5G capable devices only. |
| CAT-M1 bands | Band list; default: empty | TRB256 Supported Frequency Bands that can be selected from the list. |
| CAT-NB bands | Band list; default: empty | TRB256 Supported Frequency Bands that can be selected from the list. |
| LTE bands | Band list; default: empty | TRB256 Supported Frequency Bands that can be selected from the list. |
Low signal reconnect
The Low signal reconnect section is used to configure modem operator connection resetting based on signal strength for specified SIM card.
| Field | Value | Description |
|---|---|---|
| Enable | off | on; default: off | Enables Low signal reconnect. |
| Reset threshold | integer [-120..-50]; default: none | Signal threshold in dB for the connection. When signal is under this value modem resets connection. |
| Reset timeout | integer [15..65535]; default: 600 | Time for the device to wait in seconds before trying to reset the connection again. |
Limits
Data limit
The Data Limit section provides you with the possibility to set up a maximum used data cap for your SIM card.
To configure Data Limit press Edit
| Field | Value | Description |
|---|---|---|
| Enable data connection limit | off | on; default: off | Disables mobile data when the limit for the current period is reached |
| Data limit (MB) | integer; default: none | Disable mobile data after the limit value in MB is reached |
| Reset period | Day | Week | Month; default: Day | Interval for resetting mobile data usage limit. |
| Reset time | 0-23 / Monday - Sunday / 0-31; default: 0 | Specify the hour (in 24-hour format) when the mobile data limit reset occurs. |
| Enable SMS warning | on | off; default: off | Enables sending of warning SMS message when mobile data limit is reached. |
| Warning threshold | integer; default: none | Send warning SMS message after threshold in MB is reached. Warning threshold cannot be higher than data limit! |
| Phone number | integer; default: none | A phone number to send warning SMS message to |
| Clear collected data | - (interactive button) | The data collected for this interface will be cleared, but only if the interface is active |
SMS limit
The SMS Limit section provides you with the possibility to set up a maximum sent SMS message cap for your SIM card.
To configure SMS Limit press Edit
| Field | Value | Description |
|---|---|---|
| Enable SMS Limit | off | on; default: off | Turns SMS limiting on or off. |
| SMS limit count | integer; default: none | Sets the SMS sending cap, i.e., how many SMS messages can be sent from this SIM card during the specified period. |
| Period | Day | Week | Month; default: Day | Period for which SMS limiting should apply. After the period expires, the SMS limit counter will be reset. |
| Reset time | 0-23 / Monday - Sunday / 0-31; default: 0 | Starting hour of the day / day of the week / day of the month for SMS limiting period. |
| Clear SMS Limit | - (interactive button) | Clears the SMS limit counter for the selected period. |
SIM Switch
The SIM Switch section provides you with the possibility to configure SIM switching rules, i.e., set up circumstances under which the device will perform a switch from using one SIM card to another. Refer to the figure and table below for information.
| Field | Value | Description |
|---|---|---|
| Enable automatic switching | off | on; default: off | Turns automatic SIM switching on or off. |
| Check interval | integer [3..3600]; default: 30 | The frequency (in seconds) at which the device will check for SIM switch conditions. If such a condition exists, the router will perform a SIM switch, if not - it will check for the same conditions again after the amount of time specified in this field passes. |
| Attempts before SIM switch | integer [1..10]; default: 3 | How many times a condition will be checked before executing a SIM switch. For example, if the device is a state that meets at least one SIM switch condition, the device will perform a number of additional checks specified in this field and will perform a SIM switch only if the condition is met on every check. |
| On weak signal* | off | on; default: off | Performs a SIM switch when the signal strength drops below a certain threshold. |
| *Signal strength (dBm) | integer [-120..-50]; default: -90 | Lowest signal's strength value (RSSI) in dBm below which a SIM card switch should occur. More information: RSSI |
| On data limit | off | on; default: off | Performs a SIM switch when the mobile data limit for this SIM card is reached. You can set up a mobile data limit in the Network → WAN (Basic WebUI mode) or Network → Interfaces (Advanced WebUI mode) pages by clicking 'Edit' next to the interface you wish limit the data for. |
| On SMS limit | off | on; default: off | Performs a SIM switch when the SMS limit for this SIM card is reached. You can set up SMS limit in the Network → Mobile → General page. |
| On roaming | off | on; default: off | Performs a SIM switch when roaming conditions are detected. |
| No network | off | on; default: off | Performs a SIM switch when a network connection is not available. |
| On network denied | off | on; default: off | Performs a SIM switch when access to a network is denied by an operator. |
| On data connection fail | off | on; default: off | Performs a SIM switch when mobile data connection fails. Possible failure determination methods are:
|
When configuring SIM switching from the Secondary card, an additional field called "Switch back to primary SIM card after timeout" becomes available:
| Field | Value | Description |
|---|---|---|
| Switch back to primary SIM card after timeout | yes | no; default: no | Attempts to switch back to the primary SIM card once the specified period of time passed. |
| Initial timeout (min) | integer; default: 1 | Indicates a time value (in minutes) after which the device will attempt to switch back to the primary SIM card. |
Manual operator selection
To select an operator manually, specify Connection mode: Manual and click 'Scan For Operators'.
Will be prompted with a pop-up asking if you're sure. Click 'Scan' if you wish to proceed.
Wait for the scan to finish. As indicated by the onscreen message, the process can take up to 3 minutes.
Once the scan has finished, you will see the results in the 'Available operators'.
In order to lock the SIM card to using a single operator, select operator from Operator code field and click 'Save & Apply'.
Operators list
This section is used to create lists of operators codes, which can then be used in Operator settings section to Whitelist of Blacklist them. Operator code consists of two parts - Mobile Country Code (MCC) and Mobile Network Code (MNC).
By clicking Edit 
on a list you will be redirected to editing page in which you can enter operator codes for that list.
Utilities
SIM PIN management
| Field | Value | Description |
|---|---|---|
| SIM card lock | off | on; default: off | Correct PIN code is required to enable or disable SIM card lock. Once SIM card lock is disabled you will not need to enter PIN code on any device to use SIM card. |
| Change PIN | - (interactive button) | Open modal window to change SIM PIN |
PIN/PUK lock notification
If you set an invalid PIN/PUK code or insert a locked/blocked SIM card, a side message will pop up with information that the SIM card is locked or blocked. Click 'Unlock SIM here` to open the modal window where you can enter the SIM card PIN/PUK codes.
Side message where the SIM is locked
Side message where the SIM is blocked
| Field | Value | Description |
|---|---|---|
| PIN | 4-8 positive numeric chars (positive number); default: none | SIM card's PIN (Personal Identification Number) is a secret numeric password shared between a user and a system that can be used to authenticate the user. PIN is saved in flash memory, it will be saved after device reset. |
| PUK | 8 positive numeric chars (positive number); default: none | SIM PUK (Personal Unblocking Key) is a code consisting of 8 digits. It is used to unblock your SIM card when you entered 3 times a wrong PIN code |
APN Database
APN stands for Access Point Name and allows a device's network to connect to the internet. With the APN settings in place, your device builds a connection to a carrier's gateway. APN Database page section provides you with possibility to create/edit/delete APN records. Note: APN Database is additional software that can be installed from the System → Package Manager page.
Adding new APN
In order to create new APN to database, insert required information and click Add button.
| Field | Value | Description |
|---|---|---|
| Carrier name | default: empty | Carrier name - name of a company that sells wireless connectivity to customers for cellphone data and telephone calls. It may also be called a mobile network operator, a mobile carrier, cellular company or wireless service provider. |
| Mobile Country Code | default: empty | Mobile Country Code (MCC) - a mobile code consisting of three digits used to identify GSM networks. MCC is also used along with the International Mobile Subscriber Identity (IMSI) to identify the region from which mobile subscriber belongs. |
| Mobile Network Code | default: empty | Mobile Network Code (MNC) - a unique two- or three-digit number used to identify a home Public Land Mobile Network (PLMN) to. MNC is allocated by the national regulator. |
| APN | default: empty | APN (Access Point Name) is configurable network identifier used by a mobile device when connecting to a carrier |
| PDP type | IPv4/IPv6 | IPv4 | IPv6; default: IPv4/IPv6 | Specifies what type of address is requested from the operator |
| Authentication type | none | PAP | CHAP; default: none | Authentication method that your GSM carrier uses to authenticate new connections on it's network |
| Username | default: empty | Your username that you would use to connect to your GSM carrier's network |
| Password | default: empty | Your password that you would use to connect to your GSM carrier's network |
SIM Idle Protection
Some operators block user SIM cards after a period of inactivity. The SIM Idle Protection tab provides you with the possibility to configure the router to periodically switch to the secondary SIM card and establish a data connection with a mobile network operator in order to break the idleness and prevent the SIM card from being blocked.
Note: SIM Idle Protection is additional software that can be installed from the System → Package Manager page.
| Field | Value | Description |
|---|---|---|
| Enable | off | on; default: off | Turns SIM Idle Protection on or off. |
| Period | Month | Week; default: Month | How often SIM Idle Protection will be performed. Use the two following fields ('Day' and 'Time') to set the exact time of the action. |
| Day | integer [1..30]; default: 1 | TThe day of the month on which SIM Idle Protection will be performed. |
| Time | hh:mm; default: 01:00 | The time when SIM Idle Protection will be performed. |
| IP type | IPv4 | IPv6; default: IPv4 | IP type to be used for ping. |
| Host to ping | ip; default: 8.8.8.8 | IP address of a host that will be pinged during the SIM Idle Protection action. |
| Ping package size | integer [1..1000]; default: 56 | ICMP packet size in bytes. |
| Ping requests | integer [1..30]; default: 2 | How many ping requests will be sent. |