In a click-to-call (C2C) communication environment, a web client of a computing terminal is configured to initiate a C2C call when a user selects a call tag provided in a web page being presented to the user. The call is intended to be established between a remote endpoint associated with the call tag and one of either the computing terminal or another terminal associated with the user. If the C2C call is directed to an automated system and placed in a queue or on hold, the present invention allows supplemental content intended for the user to be delivered to the web client from which the C2C call was initiated. The web client may present the supplemental content to the user.