Help > Functions and Applications > Anonymous call
Anonymous call
The function Anonymous call enables the caller to make a call without revealing their subscriber number to the person being called.
*Note: Anonymous calls are not possible with some VoIP providers. If you intend to use this function, first ask your provider if this service attribute is supported. This function can only be used on one of the PBX's land line connections if the CLIR (case-by-case restriction of calling line identification) service feature has been requested from, and activated by, the network provider.
Requirement for use 
•The CLIR (suppression of subscriber number display per call) service feature has been enabled by the network operator.
*Important: When you configure an identity, ensure that you select the same CLIR (number presentation suppression) type as is set on the PBX/at the provider.
*Further help under Identities
Configuration
Web interface: 
•Telephony > Anonymous call
*Details about the settings are in Dialled calls
•Function keys > Choose a key > Function: Anonymous call
*Details about the settings are in Function keys
Phone: 
•Settings > Telephony > Anonymous call
*Details about the settings are in Anonymous call
•Settings > Function keys > Choose a key > Function: Anonymous call
*Details about the settings are in Function keys
Provisioning: 
*Details about provisioning this function in the Auerswald DokuWiki