The present invention provides a method and system for implementing feature interactions between an AIN-based service and a switch-based call-forwarding service. In the present invention, the switch-based call-forwarding generates an Off-Hook Delay (OHD) trigger. In response, the SSP suspends call processing and sends the forward-to number to the SCP. Based upon the SCP's determination of whether the forward-to number is for voicemail and other criteria such as time of day, day of the week, etc, the SCP determines whether the switch-based call-forward should be permitted or inhibited.