# Monogoto's SIM Tool Kit (MTK)

The Monogoto Tool Kit (MTK) is a proprietary SIM application developed by Monogoto, embedded in Monogoto SIM cards. This toolkit offers additional functionalities for managing multiple cellular identities, thereby enhancing connectivity resiliency and ensuring optimal connectivity performance.

## Automatic Mobile Identity Change Timers <a href="#docs-internal-guid-cd487b07-7fff-194e-617d-17a35838d505" id="docs-internal-guid-cd487b07-7fff-194e-617d-17a35838d505"></a>

The MTK uses two types of timers responsible for automatic mobile identity changes to ensure the best connectivity:

* Cycle Timer
* Switchback Timer

Let's discuss each timer in detail:

## **Cycle Timer**

To illustrate, consider a Monogoto SIM card with two mobile identities: Identity U (US only - primary) and identity E (global - secondary). When the SIM card comes online, it will attempt to connect to a network using the primary identity. If the device cannot connect to any supported network by the time the cycle timer threshold is reached, the SIM applet (MTK) switches to the secondary identity to establish a network connection. If the device still cannot connect to any network within the new cycle timer threshold, it will switch identities again. This process continues until the device successfully connects to a network.

## **Switchback Timer**

Consider a Monogoto SIM card with two mobile identities: Profile U and Profile E, with one as the primary or default identity. When a device is connected to a network using the secondary identity, once the switchback timer threshold is reached, the SIM applet (MTK) will switch the mobile identity back to the primary one.

***

These timers ensure that the device always has the best possible connectivity by dynamically switching between mobile identities based on network conditions. The timers can be adjusted by Monogoto support using an OTA campaign.

## How to check the MTK timers & mobile identities?

1. Log in to[ hub.monogoto.io](https://hub.monogoto.io)
2. Click on *<mark style="color:blue;">Things</mark>* in the sidebar menu
3. Select the specific Thing you want to check
4. Look for the timer section for timer-related information
5. Look for identity details section for identities related information

<figure><img src="https://lh7-us.googleusercontent.com/docsz/AD_4nXe8g6pcqzDLasUVTPCBHRceP1kvdGgtKDcKjALTymooNgOGsC_fNEfzWyxeFQtw12GKp99epjaW-k0a8D74_zZkJTSMFxQ6XfqTh2sBLGytyZSF5ldLYohZoWf8HnDkf7gA30yWUwOyXs-jytSfMuXf4TQ?key=RNiYo4O8qdLrX97W3M8qoA" alt=""><figcaption></figcaption></figure>

## How to check if your SIM has MTK installed?

1. Log in to[ hub.monogoto.io](https://hub.monogoto.io)
2. Click on *<mark style="color:blue;">Things</mark>* in the sidebar menu
3. Select the specific Thing you want to check
4. Look for the MTK indication at the status bar of the page (Green indication=MTK installed)

<figure><img src="https://lh7-us.googleusercontent.com/docsz/AD_4nXcJbFCd_oPAyF5Zh-PEy2HbD7H66gQLafY4CIUtMNVcxIKNG6jYNQx7bG9p-0PkU-YPyVM4t_aBGVglzwQYfIZ5fFRCCROU61HyU6fD1Le-mkdYh8bQQh3AExCq1IcQ79YrkU4dirIKwXH4nifuOO9uzBcL?key=RNiYo4O8qdLrX97W3M8qoA" alt=""><figcaption></figcaption></figure>

## Good to Know&#x20;

Even if the Thing doesn’t have an MTK installed, the SIM identity can be modified per request. During orders fulfillment, Monogoto team optimizes the SIM identities based on the SIM operational location (test and production).


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