# System variable value

The **System variable value** type matches an Asterisk or system channel variable value.

Open **Configuration > Conditions**, select **New Condition**, enter a name, choose **System variable value** in the Type field, complete the type-specific fields, and select **Save**.

<figure id="bkmrk-system-variable-valu">![System variable value condition edit form in the Canistracci OIL tenant.](https://manual.mirtapbx.com/uploads/images/gallery/2026-06/96Isystem-variable-value.png)<figcaption>System variable value condition edit form in the Canistracci OIL tenant.</figcaption></figure>## Fields

<table id="bkmrk-field-or-optiondescr"><thead><tr><th>Field or option</th><th>Description</th></tr></thead><tbody><tr><td>Name</td><td>Display name used in condition lists and selectors.</td></tr><tr><td>Type</td><td>Select System variable value.</td></tr><tr><td>System variable</td><td>Variable name available in the call, such as CALLERID(num).</td></tr><tr><td>Value</td><td>Value to compare against.</td></tr><tr><td>Use as Regex</td><td>Treats the value as a regular expression.</td></tr></tbody></table>

## Example

<table id="bkmrk-fieldexample-value-n"><thead><tr><th>Field</th><th>Example value</th></tr></thead><tbody><tr><td>Name</td><td>Docs Condition - System Variable Value</td></tr><tr><td>System variable</td><td>CALLERID(num)</td></tr><tr><td>Value</td><td>^1555</td></tr></tbody></table>

## Destinations

For tenant conditions, select the destinations that should run when the condition matches and when it does not match. Global conditions are referenced by tenant-level Use a Global Condition records.

## Editing and deleting

To edit this condition, open **Docs Condition - System variable value** from the Conditions list, adjust the fields, and select **Save**. Before deleting it, check IVRs, schedules, routes, feature codes, and other call-flow objects that may reference it.