Cisco 2504 Wireless Controller with 5 AP Licenses The Cisco 2500 Series Wireless Controller enables system wide wireless functions in small to medium-sized enterprises & branch offices. Designed for 802.11n performance, Cisco 2500 Series Wireless Controllers are entry-level controllers that provide real-time communication between Cisco Aironet access points to simplify the deployment & operation of wireless networks. Wired-network speed & non blocking performance for 802.11n networks Provides both real-time & historical information about RF interference impacting network performance across controllers, via systemwide Cisco Clean Air technology integration Offers CAPWAP-compliant Datagram Transport Layer Security (DTLS) encryption to help ensure full-line-rate encryption between access points & controllers across remote WAN/LAN links Supports Unified Communications for enhanced collaboration through messaging, presence, & conferencing. Supports all Cisco Unified Communications Wireless IP Phones for cost-effective, real-time voice services Integrates Cisco Video Stream technology as part of the Cisco medianet framework to optimize the delivery of video applications across the WLAN Part of Payment Card Industry (PCI) certified architecture, & are well-suited for retail customers who deploy transactional data applications such as scanners & kiosks Organizations may choose to turn off access point radios to reduce power consumption during off-peak hours