The invention implements specialized resource functions (SRFs) associated with wireless intelligent network (WIN) in a mobile switch center (MSC) of a wireless network. In one aspect, the invention provides a method for handling SRFs associated with WIN in an MSC of a wireless network. In another embodiment of the method, the invention provides a method for handling SRFs in an MSC of a wireless network, wherein the wireless network includes the MSC and a service control point (SCP) in communication with the MSC. In still another aspect, the invention provides an MSC for a wireless network that includes: a switch service function (SSF) process, an SRF process, an SSF/SRF interface, and an SCP interface.