Cisco Systems is committed to maximizing the return on your network investment. Cisco offers a portfolio of Technical Support Services to ensure that your Cisco products operate efficiently and benefit from the most current system software.Cisco Software Application Support (SAS) includes 24-hour technical assistance from the Cisco Technical Assistance Center (TAC) via telephone and the Web, online tools, plus bug fixes, maintenance, and minor releases for the software application - all for one annual fee.