Cisco 7921 not updating standard time

Features • 6 line appearances • Abbreviated dialing • Adjustable ringing and volume levels • Adjustable display brightness and timeout • Any-key answer • Audible and vibrating ringers • Autoanswer • Autodetection of headset and autoanswer from headset • Automatic keypad lock • Barge • Callback • Call forward • Call history lists • Call park • Call pickup • Call timer • Call waiting • Caller ID • c Barge • Corporate directory • Conference • Direct transfer • Extension mobility service • Fast-dial service • Group call pickup • Hold • Hotkey for keypad lock, vibration and ring toggle, and voicemail access • Immediate divert • Join • Last-number redial • Malicious-caller ID • Message-waiting indicator • Meet-me conference • Multilevel precedence and preemption (MLPP) • Music on hold (Mo H) • Mute • Network profiles (automatic) • On- and off-network distinctive ringing • OPick Up • Personal directory • Predialing before sending • Privacy • Quality report tool (QRT) • Redial • Ring tone per line appearance • Service URL • Shared line • Time and date display • Transfer • Two soft-key buttons to access screen-based applications, features, and functions • Application button that can support push-to-talk using XML • Mute • Speakerphone • 5-way navigation support • Volume control • Send button and power and end button • Skinny Client Control Protocol (SCCP) • Cisco Unified Communications Manager Versions 4.1, 4.2, 4.3, 5.0, 5.1, 6.0, 6.1, 7.0, and later • Cisco Unified Communications Manager Express Version 4.1 and later • Cisco Unified Survivable Remote Site Telephony (SRST) Version 4.1 and later • Cisco Compatible Extensions Version 4.0 • XML • Certificates • Image authentication • Device authentication • File authentication • Signaling authentication • Secure Cisco Unified SRST • Media encryption using Secure Real-Time Protocol (SRTP) • Signaling encryption using Transport Layer Security (TLS) Protocol • Certificate authority proxy function (CAPF) • Secure profiles • Encrypted configuration files Cryptography is not enabled by default and may only be enabled through a cryptographically enabled CUCM.

• Web server for configuration and statistics • Capability to disable local phone settings • Quality-of-service (Qo S) reporting: jitter, delay, dropped packets, and latency on a per-call basis • Real Time Control Protocol (RTCP) support and monitoring • Syslog • Wavelink Avalanche ( Bulgarian, Catalan, Chinese, Croatian, Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, and Swedish FCC: (-A) • 2.412-2.462 GHz; 11 channels • 5.180-5.240 GHz Unlicensed National Information Infrastructure (UNII-1); 4 channels • 5.260-5.320 GHz (UNII-2); 4 channels • 5.500-5.700 GHz; (UNII-2 Extended); 8 channels • 5.745-5.805 GHz (UNII-3); 4 channels ETSI: (-E) • 2.412-2.472 GHz; 13 channels • 5.180-5.700 GHz; 19 channels Japan : (-P) • 2.412-2.472 GHz; 13 channels Orthogonal Frequency Division Multiplexing (OFDM) • 2.412-2.484 GHz; 14 channels Complementary Code Keying (CCK) • 5.180-5.700 GHz; 19 channels Rest of world: (-W) • Uses IEEE 802.11d to identify band ranges and channels • IEEE 802.11a • IEEE 802.11b/g • Autosensing; IEEE 802.11b/g preferred over IEEE 802.11a • Autosensing; IEEE 802.11a preferred over IEEE 802.11b/g • Received signal strength indicator (RSSI) (default) IEEE 802.11a: • 6 Mbps: 610 ft (186 m) • 9 Mbps: 610 ft (186 m) • 12 Mbps: 558 ft(170 m) • 18 Mbps: 541 ft(165 m) • 24 Mbps: 508 ft(155 m) • 36 Mbps: 426 ft(130 m) • 48 Mbps: 328 ft(100 m) • 54 Mbps: 295 ft (90 m) IEEE 802.11g: • 6 Mbps: 722 ft (220 m) • 9 Mbps: 656 ft (200 m) • 12 Mbps: 623 ft(190 m) • 18 Mbps: 623 ft(190 m) • 24 Mbps: 623 ft(190 m) • 36 Mbps: 492 ft(150 m) • 48 Mbps: 410 ft(125 m) • 54 Mbps: 394 ft(120 m) • Cisco Aironet® 350 Series Access Point • Cisco Aironet 1000 Series Lightweight Access Point • Cisco Aironet 1100 Series Access Point • Cisco Aironet 1130 AG Access Point • Cisco Aironet 1140 Series Access Point • Cisco Aironet 1200 Series Access Point • Cisco Aironet 1240 AG Access Point • Cisco Aironet 1300 Series Access Point Required versions: • Cisco Wireless LAN Controller (Lightweight) 4.0 or later • Version 5.2.157.0.0 or later recommended • • Cisco IOS Software Access Points (Autonomous), Release 12.3(8)JEA or later • Version 12.3(4g)JA1 or later recommended (applies to Cisco Aironet 1130 AG and 1240 AG Access Points and Cisco Aironet 1250 Series only) Authentication: • Cisco Wireless Security Suite IEEE 802.1X • Lightweight Extensible Authentication Protocol (LEAP) Authentication • Protected Extensible Authentication Protocol (PEAP) MS-CHAP v2 • Extensible Authentication Protocol-Flexible Authentication via Secure Tunneling (EAP-FAST) • Extensible Authentication Protocol-Transport Layer Security (EAP-TLS) • Wi-Fi Protected Access (WPA) Versions 1 and 2; Personal and Enterprise • Cisco Centralized Key Management (CCKM) • Standard lithium-ion (Li-ion) battery life: up to 11.5 hours talk time and 150 hours standby (Release 1.0.4 or later) • Extended Li-ion battery life: up to 15.5 hours talk time and 200 hours standby (Release 1.0.4 or later) • Actual battery life varies based on environmental factors • Desktop charger with speakerphone (not available in Brazil) • Multi-charger • 2.5-mm headset from Plantronics ( • Leather carry case with bungee cord • Holster carry case • Shoulder strap for leather carry case • Silicon carry case from Zcover ( • Thermoformed heavy-duty polymer carry case from System Wear ( • Lock set for phone • Phone to A-type 48 in.

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To use the power supply, first insert the appropriate AC plug adapter, then plug the power supply into a wall outlet, and insert the connector into the base of your Cisco Unified Wireless IP Phone 7921G.

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The FDA observed that the photo represented labeling of a Class III medical device for which Cisco did not have regulatory approval.To optimize secure roaming, CCKM can be enabled while in WPA or WPA2 mode.Prior to this firmware release, CCKM was not supported when WPA2/AES was selected; this required a full re-authentication when roaming between access points, and could result in loss of audio during the roam.The WLAN diagnostics menu is the standard site survey utility, which will use the current network profile information to scan for the configured network.Cisco Centralized Key Management (CCKM) reduces the amount of delay time by centralizing the key management, which reduces the number of key exchanges.

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