# Object: Phone Number

The **Phone Number** object is configured with a phone number on which
incoming calls are to be received.

[![../../../_images/phone-number-object.jpg](../../../_images/phone-number-object.jpg)](../../../_images/phone-number-object.jpg)


**Fig. 1.** Phone Number Object

The information to be entered for this object includes:

- **Name** of the **Phone Number** object, used to identify the number on the workspace. For example, "Toll-Free London."

  Newly created **Phone Number** objects are provided with default names in the format {Tab name} {Object type} {Object
type count in current tab}, for example "Main Phone Number 3".
- The phone number, which may be selected from a list of unused phone numbers that were previously added via the [Phone Numbers](../../Numbers/phone-numbers.html#ps3-phone-numbers) tab in the Numbers menu.

  Phone numbers are entered in E.164 format: <CountryCode> <City/AreaCode> <LocalNumber>. The country code is 1-3 digits
long, while the length of the city/area code and local number may vary. For example:

  > - 14169233346 for Toronto, Canada
  > - 442034116446 for London, United Kingdom.

A phone number may only be allocated to a single **Phone Number** object, and may not be reused by other such objects.

Note

Phone numbers can be added or deleted in the **Numbers** menu under the [Phone
Numbers](../../Numbers/phone-numbers.html#ps3-phone-numbers) tab. This section allows you to manage the list of
available phone numbers, which can then be assigned to specific **Phone Number** objects.

[![../../../_images/fig138.png](../../../_images/fig138.png)](../../../_images/fig138.png)


**Fig. 2.** Phone Number Object Creation



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## CLI Rules

**CLI Rules** are used to override the Source **Caller Name**. This
functionality allows flexible Caller Name configurations and may be used
to differentiate SIP calls received from phone.systems(TM). **CLI Rules**
will help you to identify from which **Phone Number** object the call is
coming from.

Some CLI Rule examples:

**1. Changing Caller Name to Custom text:**

> - SRC Name Rewrite Rule: `^(.*)$`
> - SRC Name Rewrite Result: `Custom text`

**2. Add Custom text before the original Caller Name:**

> - SRC Name Rewrite Rule: `^(.*)$`
> - SRC Name Rewrite Result: `Custom text \1`

[![../../../_images/fig231.png](../../../_images/fig231.png)](../../../_images/fig231.png)


**Fig. 3.** CLI Rules

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