How to Use Super SIM Connection Events
Powerful network insights streamed to you
Super SIM Connection Events allow you to follow a Super SIM connected device's journey from when KORE first sees it trying to connect to our mobile core, to when it gets connected and starts to use data, to when it ends its data session. Once a device has successfully started a data session, update events will be published while the device stays connected to give you near real-time usage information for each Super SIM.
Every Super SIM Connection Event will be one of a set of specific event types. These event types are described below and use the same schema.
Connection Event Types
The following types of events may be emitted into the stream:
This flowchart shows when these events may be triggered once a device has powered up:
Attachment Accepted
Event type string: *.supersim.connection.attachment.accepted
Your device successfully authenticated with a cellular network and is allowed to connect to it. This means:
The Super SIM is
readyoractive.The network that your device is trying to connect to is allowed by the Network Access Profile used by the Super SIM's Fleet.
The IMSI being used is allowed to connect to the network.
If your device is using a valid Super SIM APN (e.g., super) and the device is able to establish a data connection, a Data Session Started event will follow this event. If you receive repeated attachment.accepted events in quick succession, it may indicate that the device is unable to use data and is repeatedly restarting the attachment process.
This event may not be published every time your device connects. For instance, it will not be published if the device has previously authenticated with the network, which has cached the device's permission.
Attachment Rejected
Event type string: *.supersim.connection.attachment.rejected
Your device's attachment request was rejected by the network. The device was unable to connect.
Rejections can occur because:
The Super SIM is still
neworinactive.The network that your device is trying to connect to is blocked by the Network Access Profile used by the Super SIM's Fleet.
The IMSI currently being used is not allowed to connect to the network.
To connect, your device will need to try a different network, use a different IMSI, or retry after the used by the Super SIM's Fleet has been updated to allow the network.
Attachment Failed
Event type string: *.supersim.connection.attachment.failed
Your device's attachment request failed for an unknown reason.
This event usually indicates a transient error which will resolve itself in time. When the device attempts to reconnect to the network, it may get a different result.
Data Session Started
Event type string: *.supersim.connection.data-session.started
Your device is connected to a network using a valid Super SIM APN, and can send and receive data.
Data session events will be published for traffic on both user APNs (e.g., super) and OTA APNs (e.g., ota.super) because all data used is billed and counts towards the Super SIM's data limit. However, data-session.started events will not indicate how much data was transferred by a device; this event only indicates that a data session has begun. To track data usage, subscribe to Data Session Updated events.
Data Session Updated
Event type string: *.supersim.connection.data-session.updated
Your device has remained connected using a valid Super SIM APN, and can continue to send and receive data.
While the device remains connected, data-session.updated events will be published approximately every six minutes, with the first arriving approximately six minutes after the Data Session Started event. Each data-session.updated event will include the number of bytes that were sent to the device (the event's data_download property) and the number sent by the device (data_upload) between the data_session_update_start_time and the data_session_update_end_time.
Data Session Ended
Event type string: *.supersim.connection.data-session.ended
Your device's data session has ended. The device can no longer send or receive data until a new data session is started. This event will include the amount of data that was sent to the device (data_download) and from the device (data_upload) since the most recent Data Session Updated event.
The data_session_start_time, data_session_end_time, data_session_data_download, data_session_data_upload, and data_session_data_total properties can give you a complete picture of the data session, telling you how long the device's data session was maintained and how much data was exchanged over it.
Data Session Failed
Event type string: *.supersim.connection.data-session.failed
Your device's attempt to create or maintain a data session failed. The device can no longer send or receive data until a new data session is started.
Connection Event Resource Properties
The Super SIM events you receive are based on a common schema that defines the following properties. Some properties will not be present in every case. error will not be included if no error took place. Attachment-related events will not include data session-related properties. The data_modifier property is only included if the Super SIM has exceeded its data limit. The location and imei properties will be omitted if KORE didn't receive this information from the visited network.
event_sid
The event's SID. This is a copy of the ce_id header field.
event_type
The type of connection event. This is a copy of the ce_type header field.
timestamp
The UTC time in ISO8601 format when the event occurred.
account_sid
The SID of the Account that the Super SIM and this record relate to.
apn
The Access Point Name (APN) used to establish a data session.
data_modifier
Indicates if the Super SIM's data usage is blocked because the SIM has reached its data limit. Its value will be blocked if data use is blocked, or null if data usage is not blocked.
data_session_sid
A unique string ID identifying a data session.
data_session_start_time
The data session UTC start time in ISO8601 format.
data_session_end_time
The data session UTC end time in ISO8601 format.
data_session_update_start_time
The data session UTC update start time in ISO8601 format. For a data-session.updated or data-session.ended event, this time indicates the start of the window for which the update was published. The data usage values included with these events was consumed between this time and the data_session_update_end_time.
data_session_update_end_time
The data session UTC update end time in ISO8601 format. For a data-session.updated or data-session.ended event, this time indicates the end of the window for which the update was published. The data usage values included with these events was consumed between the data_session_update_start_time and this time.
data_download
The amount of data downloaded to the device in bytes between the data_session_update_start_time and data_session_update_end_time.
data_upload
The amount of data uploaded from the device in bytes between the data_session_update_start_time and data_session_update_end_time.
data_total
The total amount of data uploaded or downloaded by the device in bytes between the data_session_update_start_time and data_session_update_end_time. The sum of data_download and data_upload.
data_session_data_download
The cumulative amount of data downloaded to the device over the data session. The cumulative amount of data downloaded to the device in bytes between the data_session_start_time and data_session_update_end_time or data_session_end_time for data-session.ended events.
data_session_data_upload
The cumulative amount of data uploaded by the device over the data session. The cumulative amount of data uploaded by the device in bytes between the data_session_start_time and data_session_update_end_time or data_session_end_time for data-session.ended events.
data_session_data_total
The cumulative amount of data uploaded or downloaded by the device over the data session. The cumulative amount of data uploaded or downloaded by the device in bytes between the data_session_start_time and data_session_update_end_time or data_session_end_time for data-session.ended events. The sum of data_session_data_download and data_session_data_upload.
imei
The International Mobile Equipment Identity of the device using the Super SIM to connect. This may be null as it is not guaranteed that the visited network will pass on this information.
imsi
The International Mobile Subscriber Identity used by the Super SIM to connect.
ip_address
The IP address assigned to the device. This address is not publicly addressable.
sim_iccid
The Integrated Circuit Card Identification Number of the Super SIM this record relates to.
sim_sid
The Super SIM's SID.
sim_unique_name
The Super SIM's unique name.
fleet_sid
The SID of the Fleet to which the Super SIM is assigned.
location
An object containing information about the location of the cell to which the device was connected. This may be null as location information is not guaranteed to be sent by the visited network. See Location info properties for more details.
network
An object containing information about the network that the Super SIM attempted to connect to or is connected to. See Network info properties for more details.
rat_type
The generation of wireless ('radio access') technology that the device was using. This will be one of: 2G, 3G, or 4G LTE.
error
An object containing information about any error encountered. See Error info properties for more details.
Location info properties
The event's location property provides information about the placement of the cell tower to which the device was or is connected. This information is not guaranteed to be send by the network, so this property may be null.
Property
Description
cell_id
The unique ID of the cell tower that the device was attached to.
lac
The location area code (LAC) of the cell tower.
lat
The tower's estimated latitude.
lon
The tower's estimated longitude.
Network info properties
The event's network property contains information about the visited cellular network that the device attempted to connect to or is connected to.
Property
Description
mcc
The Mobile Country Code (MCC) of the network that the Super SIM attempted to connect to or is connected to.
mnc
The Mobile Network Code (MNC) of the network that the Super SIM attempted to connect to or is connected to.
friendly_name
The human-readable name of the network to which the MCC-MNC values belong.
iso_country
The network's ISO2 country code.
sid
The SID of the Network resource representing the network.
Error info properties
The event's error property will be null if no error occurred. Otherwise it contains the following information.
Property
Description
code
A KORE error code.
message
A short message indicating why the error occurred. It may include standard [Diameter protocol](https://en.wikipedia.org/wiki/Diameter_(protocol\)) error messages.
Tips and tricks
Start development with a Subaccount or a new Project
If you already have a number of devices deployed, you may quickly exceed the first 100,000 free events offered by Event Streams. For example, data-session.updated events are published every six minutes if your devices maintain a persistent connection, and can therefore exceed 7,000 events per device per month. We recommend you start your development work in a separate KORE Subaccount or Project so you don't get charged for the events generated by all of your devices until you are ready.
You can transfer a Super SIM that is still in the new state to a subaccount by using this API request. If you wish to transfer a Super SIM in another state to a different Account (either a Subaccount or a Project), please open a support ticket. A KORE Support Specialist will be able to help you get started.
How to generate Attachment Rejected events
To generate attachment.rejected events, you can put a Super SIM that is either new or inactive into your device. Alternatively, update your Fleet's Network Access Profile to block all of the networks in your country.
Get your data usage from Data Session Ended events if you can
If you don't need to do near real-time usage billing or metering, you may be able to use data_session_data_upload, data_session_data_download, or data_session_data_total properties on data-session.ended events to understand how much data each of your devices are using without having to subscribe to data-session.updated events. These fields contain the cumulative amount of data exchanged by your device over the data session. This can reduce the number of events you have to receive and process by over 90%.
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