---
title: "Cisco Connect Admin - Change User's Extension"
slug: "cisco-connect-admin-change-user-s-extension"
tags: ["calltower", "public"]
updated: 2026-09-18T15:32:00Z
published: 2026-09-18T15:32:00Z
canonical: "learn.calltower.com/cisco-connect-admin-change-user-s-extension"
---

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

# Cisco Connect Admin - Change User's Extension

**Step 1.**

Log into the Admin Portal and navigate to the users tab. Check to see if the user has a phone. If there is a phone assigned to the user, [remove it from the user.](/v1/docs/cisco-connect-admin-manage-phones) It will be helpful to copy down this information because you will need it later.

If there is no phone assigned proceed to the next step.

**Step 2.**

Select the user then go to User Settings > Manage Services. [Disable CM Voice Services and Voicecube services.](/v1/docs/connect-admin-manage-user-services)

**Step 3.**

Remove the number by selecting User Settings > Properties. Then go to option 3 Phone. Change IP Phone to None

**Step 4.**

From the locations tab select the location where the number is located and click on DIDs > DIDs. Select the DID you are wanting to modify.

**Step 5.**

Change the DN (extension) to what you want it to be. Make sure this extension is not a number that has already been taken by another person before you change it. Click save when you are finished.

**Step 6.**

Navigate back to the Users tab and search for the user the DID was originally removed from.

> [!NOTE]
> Note:
> 
> *At this time the user has no DID, you will need to search by first name, last name or username*
> 
> Then click on User Services > Manage Services.

**Step 7.**

Add CM Voice Service and Voicecube services back to the user. When selecting CM Voice Service back to the user it will prompt you for a phone number. Select the number and hit save.

Direct Inward Dialing (DID) is a telecommunication service that allows a phone number to be assigned to a specific phone line within a private branch exchange (PBX), enabling direct calls to that line without going through a receptionist.