Cisco CP 7821 Manual

The Cisco CP 7821 is a single-line, entry-level IP phone designed for basic business communications. It features a high-quality handset and speakerphone, a pixel-based display, Power over Ethernet (PoE) support, and integration with Cisco Unified Communications Manager. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Handset, Speakerphone, Pixel-based display, Navigation button, Volume rocker, Headset port, Ethernet ports.

Feature	Description
Handset	High-quality receiver and transmitter for clear audio
Speakerphone	Full-duplex speakerphone for hands-free calls
Display	Pixel-based screen for call information and menus
Navigation button	For scrolling through menus and selecting options
Volume rocker	Adjusts handset, speakerphone, and ringer volume
Headset port	3.5mm port for connecting a headset
Ethernet ports	10/100 SW and PC ports for network and computer connection
Power over Ethernet (PoE)	Receives power from network switch (IEEE 802.3af)
Programmable buttons	Dedicated buttons for hold, transfer, conference, etc.
Messages button	Access voicemail and message waiting indicator

Installation

Unpack and inspect contents. Place on stable surface.

1. Connect to network: Use Ethernet cable to connect SW port to network switch.
2. Connect computer (optional): Use Ethernet cable to connect PC port to computer.
3. Connect handset: Plug coiled handset cord into handset jack.
4. Power the phone: Use PoE from switch or optional power adapter.

WARNING! Use only approved power sources. Ensure cables are securely connected.

First-Time Setup

Phone will boot and register with Cisco Unified Communications Manager.

1. Check network connection: Ensure Ethernet link is active.
2. Verify registration: Display should show extension number and "Registered".
3. Set user preferences: Use Settings menu to configure ringtone, contrast, etc.
4. Test call: Make a test call to verify audio quality.

CAUTION! Do not place phone in areas with extreme temperature or humidity.

Specifications

• Display: Pixel-based, 2 lines.
• Network: 10/100 Mbps Ethernet, IEEE 802.3af PoE.
• Audio: Wideband audio support, G.711, G.729 codecs.
• Ports: 2 x RJ-45 (SW, PC), Handset, Headset, Power.
• Protocols: SIP, SCCP (Skinny).
• Power Source: PoE (IEEE 802.3af) or 48V DC power adapter.
• Operating Temp: 32°F to 104°F (0°C to 40°C).
• Compliance: FCC Part 15, ICES-003, CE, RCM.

Controls and Settings

Access menus via Navigation button. Front buttons: Messages, Hold, Transfer, Conference, Volume rocker.

Display softkeys: Context-sensitive functions appear on screen (e.g., Redial, CFwdAll).

Settings menu: Ringtone selection, Display contrast, Network configuration (view only), Time and date. User preferences: Set via Cisco Unified Communications Manager Self Care Portal (web interface).

Connecting Devices

Network: SW port to switch. Computer: PC port to computer NIC. Headset: 3.5mm plug to headset port.

1. Ensure phone is powered off before connecting devices.
2. Use standard Ethernet cables (Cat5e or better).
3. For headset use, enable headset mode via Settings or softkey.

Tip: Label cables for easy identification during maintenance.

Using Phone Features

Basic call functions: Make, answer, end, hold, transfer, conference.

1. Make call: Lift handset or press Speaker, dial number.
2. Answer call: Lift handset, press Speaker, or press Answer softkey.
3. Hold: Press Hold button; resume with Resume softkey.
4. Transfer: During call, press Transfer, dial target, press Transfer again.
5. Conference: During call, press Conference, dial participant, press Conference again.
6. Voicemail: Press Messages button to access.
7. Redial: Press Redial softkey or dial **.
8. Call forward: Use CFwdAll softkey or configure via Self Care Portal.

WARNING! Do not use damaged handset cords. Replace if frayed or cracked.

Accessibility Features

Hearing aid compatible (HAC) handset. Visual message waiting indicator (LED). Adjustable ringer volume and tone. For additional accessibility, consult Cisco Unified Communications Manager documentation.

Care & Cleaning

Unplug power before cleaning. Use soft, dry cloth; mild detergent if needed. Avoid liquids on phone.

CAUTION! Do not use abrasive cleaners or solvents. Keep vents clear of dust.

Regulatory Information

FCC Part 15: Class A digital device; complies with limits for business use. ICES-003: Class A. CE marked. Copyright © Cisco Systems, Inc. All trademarks are property of their respective owners. For support, visit www.cisco.com or contact Cisco Technical Assistance Center.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Phone not powering on	Power/PoE issue	Check Ethernet cable; verify switch PoE; try power adapter.
No display	Power/contrast	Ensure phone is powered; adjust display contrast in Settings.
No network registration	Network/config	Check cable; verify switch port; confirm correct configuration in CUCM.
No audio	Handset/volume	Check handset connection; adjust volume; test with headset.
Cannot make calls	Dial plan/registration	Verify phone is registered; check dial plan configuration.

Reset: Unplug power, wait 10 seconds, reconnect. For factory reset, consult administrator.

Service: Contact Cisco Technical Assistance Center or authorized service provider.