# Calling Party Name Substitution

## Description

The Calling Party Name Substitution feature replaces the caller's name with the caller's Department in PSTN-bound calls, thereby concealing the caller's identity for privacy and security.

## Conditions and Feature Interactions

- This feature is applicable only for PSTN-bound PRI and SIP trunk calls. For PRI calls, the first 15 characters of the Department field are used. For SIP Trunk calls, the first 34 characters of the Department field are used.

- For Multi-Device User Groups callers, the Department of the Prime member is used in PSTN-bound calls.

- If the Department field for the caller is blank, a dash (-) is substituted for the caller’s name.

## Programming

- User and Services Configuration form

- Configure the Department field.

- Class of Service Options form

- Set the Calling Party Name Substitution option to Yes.

## Device Support

- Supported on all devices.

## Operation

- Make a PSTN-bound call.