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Cisco® Unified Communications is a comprehensive IP communications system of voice, video, data, and mobility products and applications. It enables more effective, more secure, more personal communications that directly affect both sales and profitability. It brings people together by enabling a new way of communicating-where your business moves with you, security is everywhere, and information is always available...whenever and wherever it is needed. Cisco Unified Communications is part of an integrated solution that includes network infrastructure, security, mobility, network management products, lifecycle services, flexible deployment and outsourced management options, end-user and partner financing packages, and third-party communications applications. Figure 1. Cisco Unified Wireless IP Phone 7921GThe power of the Cisco Unified Communications family of products extends throughout the enterprise by delivering a powerful, converged wireless solution with intelligent wireless infrastructure and an innovative product with the new Cisco Unified Wireless IP Phone 7921G (Figure 1).
Features Table 1. Features Table 2. Wireless Characteristics Item Description LED Ring, message waiting, and charging LED Protocol support Codec support G.711a, G.711u, G.729a, and G.729ab audio compression codecs Configuration options Network features Security features Provisioning and management Deployment tools Integrated site survey tool Language support Catalan, Danish, Dutch, English, Finnish, French, German, Italian, Japanese, Norwegian, Portuguese, Spanish, and Swedish Network standard IEEE 802.11a, 802.11b, and 802.11g Frequency band and operating channels Support mode Data rates Nonoverlapping channels Wireless modulation Receiver sensitivity Transmitter output power Range Dokładamy wszelkich starań aby podane zdjęcie i opis były w pełni prawidłowe i kompletne. Niestety, nie możemy zagwarantować, że podane dane nie zawierają pomyłek i błędów które jednak nie mogą być podstawą do ewentualnych roszczeń. W razie jakichkolwiek wątpliwości lub chęci uzyskania dodatkowych informacji prosimy o kontakt z działem handlowym. Prezentowany katalog produktów nie stanowi oferty handlowej w rozumieniu Kodeksu Cywilnego, a ma jedynie charakter informacyjny.The Cisco Unified Wireless IP Phone 7921G supports a host of calling features and voice-quality enhancements. Because the Cisco Unified Wireless IP Phone 7921G is designed to grow with system capabilities, features will keep pace with new system enhancements. Table 1 provides a list of the features, Table 2 summarizes wireless characteristics, Table 3 lists specifications, Table 4 lists accessories, and Table 5 provides certification and compliance information.
• Skinny Client Control Protocol (SCCP) • Cisco Unified Communications Manager Versions 4.1, 4.2, 4.3, 5.0, 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 • Extensible markup language (XML) • Dynamic Host Configuration Protocol (DHCP) client or statically configured • Support for online firmware upgrades using Trivial File Transfer Protocol (TFTP) • Domain Name System (DNS) • Cisco Discovery Protocol • Transparent secure roaming • Provisioning of network parameters through DHCP • 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 • Web server for configuration and statistics • Capability to disable local phone settings • Quality-of-service (QoS) reporting: jitter, delay, dropped packets, and latency on a per-call basis • Real Time Control Protocol (RTCP) support and monitoring • Syslog • FCC: (-A) • 2.412-2.462 GHz; 11 channels • 5.15-5.25 GHz Unlicensed National Information Infrastructure (UNII-1), 5.25-5.35 GHz (UNII-2), and 5.725-5.825 GHz (UNII-3); 12 channels • 5. 47-5.725 GHz; 11 channels • ETSI: (-E) • 2.412-2.472 GHz; 13 channels • 5.15-5.725 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) • 5.15-5.725 GHz; 19 channels • Rest of World: (-W) • Uses 802.11d to identify band ranges and channels • 802.11a • 802.11b/g • Autosensing, 802.11b/g preferred over 802.11a • Autosensing, 802.11a preferred over 802.11b/g • Received signal strength indicator (RSSI) (default) • 802.11a: • 6, 9, 12, 18, 24, 36, 48, and 54 Mbps • 802.11b: • 1, 2, 5.5, and 11 Mbps • 802.11g: • 6, 9, 12, 18, 24, 36, 48, and 54 Mbps • 802.11a: Up to 23 (including radar channels) • 802.11b/g: 3 (Japan uses 4) • 802.11a: OFDM • 802.11b: Direct sequence spread spectrum (DSSS) • 802.11g: OFDM and DSSS
(typical) • 802.11a: • 6 Mbps: -89 dBm • 9 Mbps: -88 dBm • 12 Mbps: -86 dBm • 18 Mbps: -85 dBm • 24 Mbps: -82 dBm • 36 Mbps: -80 dBm • 48 Mbps: -76 dBm • 54 Mbps: -74 dBm • 802.11b: • 1 Mbps: -95 dBm • 2 Mbps: -89 dBm • 5.5 Mbps: -89 dBm • 11 Mbps: -85 dBm • 802.11g: • 6 Mbps: -90 dBm • 9 Mbps: -89 dBm • 12 Mbps: -87 dBm • 18 Mbps: -85 dBm • 24 Mbps: -82 dBm • 36 Mbps: -78 dBm • 48 Mbps: -74 dBm • 54 Mbps: -73 dBm • 802.11a OFDM: • 40 mW (16 dBm) • 32 mW (15 dBm) • 20 mW (13 dBm) • 8 mW (9 dBm) • 3.2 mW (5 dBm) • 1 mW (0 dBm) • 802.11b CCK: • 50 mW (17 dBm) • 20 mW (13 dBm) • 8 mW (9 dBm) • 3.2 mW (5 dBm) • 1 mW (0 dBm) • 802.11g OFDM: • 40 mW (16 dBm) • 32 mW (15 dBm) • 20 mW (13 dBm) • 8 mW (9 dBm) • 3.2 mW (5 dBm) • 1 mW (0 dBm)
(stated ranges are from measured open-site range testing) • 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) • 802.11b: • 1 Mbps: 1,027 ft <
(313 m)
Informacje ogólne
Model:
IP 7921G
Kod producenta:
CP-7921G-E-K9=
Typ:
Telefon VoIP
