The Oklahoma CareerTech agency Information Technology infrastructure is based on a variety of network technologies. Network file and print services are made available through Ethernet, token ring, and wireless networks. Virtual Private Network services provide staff with secure remote access to network resources, and CT Central provides calendaring and email to state CareerTech agency staff. The SDCS Network Services is the foundation of the CareerTech Learning Network and the backbone of agency applications. The SDCS is continuing its migration plan to phase out the token ring network and replace it with wired and wireless Ethernet.