# Users (Extensions)

You can create, delete, or edit any extensions. Search box allows you to search for the extension. To create a new extension, click on “Add New.”

![](https://lh5.googleusercontent.com/Lklksb9SmQQXbQzzMFg5zpvROeDi-GBxjtE5a6dwndy0BJ9bzutr9y3BM6RL-jKMlcIArMjcQE72sv9CNpMY_4HwriBl0K2dICvI0lq9Kz6sRnMcyRvtBDKLocTK99jcgVX8X_3T)

**Create Extension:** Use this form to create new extensions, and add the following parameters.

![](https://lh6.googleusercontent.com/rBtaLa7jTgGbBd5lOEnCpqQwOzyszHUVs9SOMiGSs4vn6JkmE4IjeGoeSOr8DvRx3emdTZ5YF4iMAjVc0HZkcBjYDdKmZde8kHbZytLzKrps87IEvxt4KmqVfMJ9h5Qm0VEs9a3T)

**Number:** This number is used to dial from one extension to another within different departments such as sales, support, or specific employees. The extension much be unique 3-4 digit number and can’t be used again. Good practice is to start with 100 and go all the way to 9999. Some people use last 4 digits of their primary phone number. Some 3 digit extensions are reserved and can’t be used such as 911, 922, 611, and 411. 

**First Name:** First name of the person this extension belongs to. 

**Last Name:** Last name of the person this extension belongs to. Email: System email’s the voicemail to this email address. 

**Company Number:** This is the number shown on phone screen/device when outbound call is made. 

**Call Forwarding:** You can always setup call forwarding when there is no answer. If you choose to forward call, its Destination can be 11-digit US number or extension.

**Failover Routing:** If enabled, this will route the call to destination in failover, in case user is not registered. This is useful in case of Internet outage or power failures. 

**Home Phone:** Optional 

**Work Phone:** Optional 

**Recording:** System allows the calls to be recorded. If set to “Yes”, all the calls coming to this extension will be recorded.

### Advanced Options

Advanced options allow you to set pre recorded name, voicemail greeting ring timeout and setup dynamic caller ID. 

![](https://lh6.googleusercontent.com/Agp-RuX5Qw-SIsx3_b5aIrxgQ3cFsX3VG946Y51QJnaYqjpg_-zPlra9OO8x8o1q5OSmJxNmUbpnDycvOLKcp-g-0Zjz_1NgseVap7RWTctgkczH1lMa1_Qf9HpiB1w2Ya887rqY)