Abstract: A system, method and computer program product implement a Virtual Network Call Processor with a CALL PULLBACK mechanism for providing a type of screened call transfer. Callers, while attempting to contact an intended recipient, have their calls sent to the Virtual Network Call Processor, which places the caller on soft hold while attempting to locate the intended recipient. The Call Processor uses another external line to call the intended recipient at one of a number of predetermined locations identified by stored numbers where each number is serviced by perhaps different local telephone equipment having different characteristics and attributes. The CALL PULLBACK mechanism is used to identify signaling attributes of signals provided by the respective local telephone equipment, by analyzing frequency and cadence information from the signals and normalize the signals so as to detect a status of the Call Processor's attempt to reach the intended recipient.