When an incoming call is received from a customer, various aspects of a scalable computer-telephony integration system may include receiving an indication of availability from several call agents within the computer-telephony integration system and presenting the indications of availability and identification information for each of the call agents on a display. A user control for searching the call agents may also be presented on the display for use by a first call agent to view an indication of availability for a particular call agent. The customer call may then be transferred from the first call agent to the particular call agent in response to the indication of availability identifying the particular call agent as available.