---
title: "Understanding SIM and eSIM architecture"
url: "https://cradlepoint.ericsson.com/resources/understanding-sim-and-esim-architecture/"
description: "In this paper, we will break down the “3-Layer Architecture” of the modern SIM stack, explore how these components work together to enable Zero-Touch Provisioning (ZTP), and demonstrate how this modular approach provides the agility required to transform enterprise operations."
content_type: "asset"
resource_type: "White paper"
format: "PDF"
language: "en-us"
gated: true
portfolio:
  - "wwan"
regions:
  - "United States"
breadcrumb: "[Home](https://cradlepoint.ericsson.com/) › [Proof Center](https://cradlepoint.ericsson.com/proof-center/) › [Resources](https://cradlepoint.ericsson.com/resources/) › Understanding SIM and eSIM architecture"
---

# Understanding SIM and eSIM architecture

*White paper · PDF*

In this paper, we will break down the “3-Layer Architecture” of the modern SIM stack, explore how these components work together to enable Zero-Touch Provisioning (ZTP), and demonstrate how this modular approach provides the agility required to transform enterprise operations.

*This resource is gated: the document is available after completing the form on the page.*