# Object: Blocklist

The **Blocklist** object is used to block incoming calls received from
specific phone numbers and empty or alphabetical CLIs. If the calling
number **exactly** matches the configured settings or phone number, then
the incoming call will be automatically terminated and will not be
passed to objects connected to the right-hand side of the **Blocklist**
object.

![../../../_images/fig229.png](../../../_images/fig229.png)


**Fig. 1.** Blocklist Object

The information to be entered for this object is:

- The name of the **Blocklist** object.
- Additional Settings:

> - **Block empty Caller IDs** - When the source number field is empty or null, the call will be terminated.
> - **Block Caller IDs containing letters** - When the source number field includes alphabetical characters, the call will be terminated.

- **The blocklisted phone numbers** - A list of the **exact** phone
  numbers to be blocked. There are no limitations on the format (such
  as E.164) or the number of digits used in listing these phone
  numbers, so as to allow for maximum flexibility in CLI matching.
  Multiple numbers may be added as required.

![../../../_images/fig130.png](../../../_images/fig130.png)


**Fig. 2.** Creating a Blocklist

Phone numbers previously added to the **Blocklist** object may be
deleted by clicking on the "X" icon to the right of the number.

A simple usage example of the **Blocklist** object is shown below, where
the blocklist filter is applied to all incoming calls before those calls
are processed by the company's voice menu.

![../../../_images/blocklist-example.png](../../../_images/blocklist-example.png)


**Fig. 3.** Example