Cisco SPA525G2 5-Line IP Phone (5 Pack) Cisco Small Business SPA 525G2 - VoIP phone 802.11g Wi-Fi SIP, SIP v2, SPCP multiline silver, dark gray for Small Business Pro Unified Communications 320 with 4 FXO Bluetooth enhanced integration with mobile phones to make and receive calls, import your personal contacts, and charge your mobile phone SPA525G2 uses industry-leading SPA voice over IP (VoIP) technology from Cisco, with high-quality hardware providing additional connectivity via Bluetooth, PoE (802.3af), or a Wireless-G client (802.11g). Cisco AnyConnect VPN Client: Highly secure Internet phone connection for remote users that is simple and easy to set up Cisco SPA525G2 5-line IP phone with color display is an excellent choice for businesses that require an enhanced user experience with a hosted IP telephony service, an IP private branch exchange (PBX), or a large-scale IP Centrex deployment.