A button set to this function allows the user to view the phone system's call log of all caller IDs of calls received by the system. To use the button the user must be one of the three extensions configured for call ID logging.

If an extension already has a button set to this function, creating another button with this function automatically clears the setting from the existing button.

This function is only supported on a button that includes LED/LCD indicator. The indicator is lit when the function is enabled.

To access this function without a programmable button:

On DS and ETR phones, press FEATURE and dial 23.

On BST phones, press FEATURE and dial 812.