---
title: "About the Equipment Swap Wizard"
slug: "about-the-equipment-swap-wizard"
updated: 2026-07-31T08:25:36Z
published: 2026-08-10T20:13:11Z
canonical: "help.idibilling.com/about-the-equipment-swap-wizard"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.idibilling.com/llms.txt
> Use this file to discover all available pages before exploring further.

# About the Equipment Swap Wizard

The Equipment Swap Wizard allows an authorized user to assign an MDN to a different ESN and allows you to exchange a handset or a SIM card.

**SIM card**

A SIM card is a removable smart chip that is placed a cell phone.

**MDN**

MDN stands for Mobile Directory Number

**ESN**

ESN stands for Electronic Serial Number. It is a unique number burned in to a CDMA/TDMA handset.

When swapping equipment, if the current handset uses GSM technology, you cannot change to one with CDMA/TDMA or Dual Mode (CDMA + SIM) technology. Likewise, you cannot change from CDMA/TDMA or Dual Mode (CDMA + SIM) technology to GSM. However, you can change from CDMA/TDMA to Dual Mode (CDMA + SIM) and vice versa.

> [!NOTE]
> Note
> 
> The service must be wireless-based and active.