Extension | Alphanumeric | Extension identifier
Numeric digits are recommended if the extension must be dialed from a phone.
| Yes
|
Device Type | List
| Extension device type
**Type**
| **Description**
| SIP | SIP (Session Initiation Protocol) device
| IAX2 | IAX2 (Inter-Asterisk eXchange) device | DAHDI | DAHDI (Digium Asterisk Hardware Device Interface) device
| VIRTUAL | Voicemail-only or call-forwarding extension, not connected to any physical device or softphone
| SIP-VIRTUAL | Additional extension on a device that supports multiple extensions
|
VIRTUAL and SIP-VIRTUAL device types do not use extension licenses
| Yes
|
CallerID Name | Field | Caller ID name – displayed on devices that support caller ID
| Yes |
User | List
| The portal user associated with the extension (refer to [Users](https://docs.intellasoft.net/books/web-portal-dL9/page/users) for more information) – select if a specific user requires permission to access
VIRTUAL and SIP-VIRTUAL device types do not use extension licenses.
| Yes
|
Agent | Value | Indicates if the extension is associated with an agent
| Read-only |
Status
| Value
| Status of the device registered to the server
**Status**
| **Description**
| OK
| The device is registered and configured
IP and port are always displayed for this status.
| UNREACHABLE | The system cannot reach a registered device
An UNREACHABLE status could indicate an issue. Contact your system administrator if you suspect a problem.
| UNKNOWN | The system has given up trying to contact an UNREACHABLE device
| UNMONITORED | Endpoint is not monitored
IP and port are always displayed for this status.
An UNMONITORED endpoint can still be called. When this endpoint is called, the system will try to reach it until it times out. If the endpoint is unresponsive, the call fails.
| BLANK | No device is registered to this extension
A blank status could indicate an issue. Contact your system administrator if you suspect a problem.
|
| Read-only
|
IP | Numeric | Internet protocol address (IPv4 format – e.g. 255.255.255.255) assigned to the extension
| Read-only |
Port | Numeric | Device signaling port
| Read-only |
Voicemail | Checkbox | Enables or disables voicemail | No |
Voicemail Pin | Numeric | Voicemail PIN – enabled if voicemail is enabled
| Yes if voicemail is enabled |
Voicemail Email | Email | Email address where voicemail messages are sent – enabled if voicemail is enabled
| No |
Controls
| n/a
| Extension tools
**Icon**
| **Description**
| [](https://docs.intellasoft.net/uploads/images/gallery/2024-03/bx2image.png)
| Opens the [Voicemail configuration manager](https://docs.intellasoft.net/books/web-portal-dL9/page/voicemail) | [](https://docs.intellasoft.net/uploads/images/gallery/2024-03/TfCimage.png)
| Opens the Phone Buttons configuration manager | [](https://docs.intellasoft.net/uploads/images/gallery/2024-03/hXLimage.png)
| Delete extension – see [Deleting an Extension](#bkmrk-deleting-an-extensio) below |
| n/a
|