Cisco IP Phone 7841 VoIP Phone SIP 4 Lines

The Cisco® IP Phone 7800 Series delivers simple, highly secure, and highly cost-effective voice communications for small to large businesses. it is supported both on-premises and hosted from cisco and on third-party hosted call control platforms. The Cisco 7841 is an ideal endpoint for moderately active voice communications needs of workers, administrative staff, and managers.

Enjoy multi-line models for desktops, an endpoint for small conference rooms, and back-lit, pixel-based displays. Fixed keys and two-way navigation make it easy to use, and full-duplex communications deliver crystal-clear voice

The 7800 Series supports the latest encryption to help secure your voice communications. Administration for software updates is simpler, as all models in the series share the same Phone OS. Cisco Expressway enables remote worker single sign-on access through a one-time pin code entry.

Save energy with low power consumption, recyclable plastics in the hardware design, and the Cisco Energy-Wise energy-management architecture.

Product Specifications

• Phone Model: Cisco CP-7841-K9 7800 Series VoIP Phone

Display and User Interface:

• Display: 3.5-inch (396×162 pixels) white backlit grayscale display
• Softkeys: 4 programmable context-sensitive softkeys
• Line Keys: 4 programmable line keys with tri-color LED indicators
• Navigation Cluster: 4-way navigation cluster for menu and feature navigation

Audio Features:

• Wideband Audio: Yes (G.722)
• Full-Duplex Speakerphone: Yes
• Acoustic Echo Cancellation: Yes
• Background Noise Reduction: Yes
• Headset Port: RJ-9 headset port

Voice Quality:

• Audio Codec Support: G.711a, G.711u, G.729a, G.729ab, iLBC
• VoIP Protocols: SIP (Session Initiation Protocol)

Networking and Connectivity:

• Ethernet Ports: 2 x 10/100/1000 Gigabit Ethernet ports (RJ-45)
• Power over Ethernet (PoE) Support: Yes (IEEE 802.3af)
• PC Pass-Through Port: 1 x 10/100/1000 Gigabit Ethernet port (RJ-45) for connecting a computer

Additional Features:

• Directory: Supports local and server-based directories
• Call History: Lists incoming, outgoing, and missed calls
• Call Waiting Indicator: Yes
• Call Transfer: Yes
• Call Forwarding: Yes
• Redial: Yes
• Do Not Disturb: Yes
• Multi-language Support: Yes
• Wall-Mountable: Yes, with optional wall mount kit

Power Requirements:

• Power Source: Power over Ethernet (PoE) or optional external power supply

Physical Characteristics:

• Dimensions (W x D x H): Approximately 8.1 x 7.1 x 6.0 inches (20.6 x 18.0 x 15.2 cm)
• Weight: Approximately 2.1 lbs (0.95 kg)

Environmental Conditions:

• Operating Temperature: 32°F to 104°F (0°C to 40°C)
• Storage Temperature: -4°F to 158°F (-20°C to 70°C)
• Operating Humidity: 10% to 90% non-condensing

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