Clearance items can be unused inventory stock rotation, manufacturer refurbished, or have gone through a thorough reconditioning process. All items are tested, quality assured, fully functional, and carry a full 90 day manufacturer's warranty.
Lighted line keys • 5 illuminated call appearance line buttons with tricolor LEDs Hold key • Puts current call on hold Voicemail key • 1-button access to voicemail Menu key • Accesses call history, directory, speed dials, MP3 player, web applications, user preferences, network configuration, device administration, and status Lighted mute key • Lights up red when the call is on mute, and turns off when mute is removed. Also lights red in the event of a network failure Lighted headset key • Lights up green when pressed and using a Bluetooth or 2.5-mm headset for hands-free calling Lighted speakerphone key • Activates full-duplex speakerphone; stays lit while speakerphone is on Lighted message waiting indicator • Lights when there is new voicemail; visible on the phone chassis above the LCD screen; stays lit until the new voicemail has been processed by the user Graphical display • Color 3.2-in. QVGA (320 x 240 pixels) backlit LCD graphical display 5-way navigational buttons • Navigating menus and multimedia applications 4 soft-key buttons • Dynamically present calling options to the user Network features • Cisco Discovery Protocol, IEEE 802.1p/Q Wi-Fi • 802.11b/g, Wi-Fi Multimedia (WMM) (802.11e) Wi-Fi security • Wired Equivalent Privacy (WEP), 64 or 128 bit • Wi-Fi Protected Access (WPA), Personal and Enterprise • WPA2, Personal and Enterprise • Wi-Fi Protected Setup (WPS) Ethernet switch • 10/100 PC switch port enables LAN connectivity to a co-located PC. Can designate separate VLANs (802.1Q) for the PC and Cisco IP phones, providing improved security and reliability of voice and data traffic. 802.3af PoE WAN port; disabled when phone is used in Wi-Fi mode Volume control • Volume-control toggle provides easy decibel-level adjustments of the handset, monitor speaker, and ringer Applications • Customizable screen saver on phone display (Photo Album) • Music player (MP3) • RSS web services • Cisco MonitorView • SIP third-party call control for server-based applications • Lightweight Directory Access Protocol (LDAP) and Cisco XML-based corporate directory support • Cisco XML services interface (XSI) Call control and audio features • Call hold • Music on hold  • Call waiting • Caller ID name and number and outbound caller ID blocking • Caller ID mapping for incoming calls • Outbound caller ID blocking • Call transfer - attended or blind • Call conferencing - hosted (N-party) or local (3-party) • Call forwarding - unconditional, no answer, on busy • Visual voice message waiting indicator (VMWI) • Shared/bridge line appearance 1 • Call pickup - selective and group 1 • Call park and unpark 1 • Call back on busy • Call blocking - anonymous and selective • Do not disturb • Intercom 1 • Group paging 1 • Extension mobility 1 • Configurable dial/numbering plan support with inter-digit timers - per line • URL (IP) dialing support • Distinctive ringing based on calling and called number • Supplementary services feature activation codes • Supplementary services announcements codes • Configurable supplementary services soft keys • Individual volume setting per audio path (headset/handset/speaker) Signaling protocol support • SPCP • SIP version 2 (RFC 3261, RFC 2543, RFC 3263, RFC 3264, RFC 3275) Voice features • SIP proxy redundancy - dynamic via DNS SRV, A records • Re-registration with primary SIP proxy server • SIP support in Network Address Translation (NAT) networks, including simple traversal of User Datagram Protocol (UDP) through NAT (serial tunnel [STUN]) • Codec name assignment • Voice algorithms: ◦ G.711 (A-law and µ-law) ◦ G.726 (32 kbps) ◦ G.729 AB ◦ G.722, Wideband Audio • Dynamic payload support • Adjustable audio frames per packet • Dual-tone multi-frequency (DTMF): in-band and out-of-band (RFC 2833), SIP INFO (RFC 2976) • Flexible dial plan support with inter-digit timers • IP address/Uniform Resource Identifier (URI) dialing support • Call progress tone generation • Jitter buffer - adaptive • Frame loss concealment • Voice activity detection (VAD) with silence suppression • Attenuation/gain adjustments • VMWI via NOTIFY, SUBSCRIBE • Caller ID support (name and number) Data features • MAC address (IEEE 802.3) • IPv4 (RFC 791) • Address Resolution Protocol (ARP) • DNS A record (RFC 1706), SRV record (RFC 2782) • Dynamic Host Configuration Protocol (DHCP) client (RFC 2131) • Point-to-Point Protocol over Ethernet (PPoE) client (RFC 2516) • Internet Control Message Protocol (ICMP) (RFC 792) • TCP (RFC 793) • UDP (RFC 768) • Real Time Protocol (RTP) (RFC 1889, 1890) • Real Time Control Protocol (RTCP) (RFC 1889), RTCP-XR (RFC 3611) • Differentiated Services (DiffServ) (RFC 2475), type of service (ToS) (RFC 791, 1349) • VLAN tagging 802.1p/Q • Simple Network Time Protocol (SNTP) (RFC 2030) Security • Password-protected system reset to factory default • Password-protected administrator and user access authority • HTTPS with factory-installed client certificate • HTTP digest - encrypted authentication via MD5 (RFC 1321) • Up to 256-bit Advanced Encryption Standard (AES) encryption • SIP over TLS for signaling encryption • AnyConnect SSL VPN • SRTP for media encryption Provisioning, administration, and maintenance • Web browser administration and configuration via integrated web server • Automated provisioning and upgrade via HTTPS, HTTP, or Trivial File Transfer Protocol (TFTP) • Asynchronous notification of upgrade availability via NOTIFY • Nonintrusive, in-service upgrades • Report generation and event logging • Stats in BYE message • RTP media loopback for quality of service (QoS) monitoring • Syslog and debug server records - per-line configurable Dimensions (H x W x D) • 8.4 x 8.3 x 1.7 in • 214 x 212 x 44 mm Weight • 0.9 kg • 2.0 lb • 32.8 oz Phone casing composition • Acrylonitrile butadiene styrene (ABS) plastic in textured dark gray with silver-colored bezel Operating temperature • 32° to 113°F (0° to 45°C) Relative humidity • 5% to 95% noncondensing, operating and nonoperating Storage temperature • -13° to 176°F (-25° to 80°C) Regulatory compliance • FCC, CE, C-Tick, Wi-Fi, hearing aid compatible (HAC), Reduction of Hazardous Substances (RoHS), Bluetooth Safety • UL 60950 • C-UL 60950 • EN 60950 • IEC 60950 Electromagnetic compatibility • FCC Part 15 (CFR 4) Class B • ICES-003 Class B • EN 55022 Class B • CISPR 22 Class B • CISPR 24 • EN 55024 • EN 50082-1 • EN 61000-3-2 • EN 61000-3-3 • EN 61000-6-1 Telecom • FCC Part 68 (CFR47) HAC