> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://helpdesk.ttse.online/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# How to modify an existing extension for a new user

If you have a staff member leave and would like to re-use an extension, there is no need to delete the extension and re-create then reprovision again, follow these steps:

1. Log into your phone system management console, refer to article below:
[https://helpdesk.vcausupport.com/en-au/article/logging-into-vcloud-pbx-management-console/](https://helpdesk.vcausupport.com/en-au/article/logging-into-vcloud-pbx-management-console-ex9ror/)

1. Go to the extension tab in the left hand side menu bar.

![](https://storage.crisp.chat/users/helpdesk/website/043b9ab8-a8fe-47d6-b600-a57b3c98321c/f68b83f9-4261-47a9-ba52-9f5fa498e28b.png)

2. Double click on the relevant extension number. 

![](https://storage.crisp.chat/users/helpdesk/website/043b9ab8-a8fe-47d6-b600-a57b3c98321c/ce7530fc-da89-478b-998d-381d15ef2683.png)

3. Change the User Information as needed (Firstname, Surname, Email Address and DID).

![](https://storage.crisp.chat/users/helpdesk/website/043b9ab8-a8fe-47d6-b600-a57b3c98321c/8870a026-2cda-459d-a57c-9b5e816d2a2c.png)

4. You will need to reprovision the handset again to down the new information. To reprovision refer to article below:
[https://helpdesk.vcausupport.com/en-au/article/how-to-reprovision-your-ip-phone-from-the-phone-system-management-console/](https://helpdesk.vcausupport.com/en-au/article/how-to-reprovision-your-ip-phone-from-the-phone-system-management-console-af8o2n/)

__PLEASE NOTE: __
You cannot change the extension number. If you need to do this, you will need to delete this extension and start again by provisioning the phone, refer to article 
[https://helpdesk.vcausupport.com/en-au/article/how-to-provision-a-new-phone-through-vcloud-phone-system-management-console/](https://helpdesk.vcausupport.com/en-au/article/how-to-provision-a-new-phone-through-vcloud-phone-system-management-console-1wh5sod/)