CP-9951 - Phone CISCO - Free user manual and instructions
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| Product Type | Enterprise IP Phone with Color Display |
| Model Number | CP-9951 |
| Brand | Cisco |
| Dimensions (W x H x D) | Approximately 8.7 x 6.0 x 2.0 inches (221 x 152 x 51 mm) |
| Weight | Approximately 2.2 lb (1.0 kg) |
| Power Supply | PoE (IEEE 802.3af) or optional AC adapter (CP-PWR-CUBE-3) |
| Display | 5.6-inch 640 x 480 color TFT LCD |
| Network Interface | Two 10/100/1000 Gigabit Ethernet ports (with integrated switch) |
| VoIP Protocols | SIP, SCCP |
| Audio Codecs | G.711a, G.711μ, G.722, G.729a, iLBC |
| Number of Lines | 6 programmable line keys with dual-color LEDs |
| Additional Keys | 4-way navigation, volume, mute, speakerphone, headset, hold, transfer, conference, voicemail |
| Speakerphone | Full-duplex with echo cancellation |
| Headset Compatibility | RJ-9 handset port and dedicated headset port (RJ-9 or 2.5mm) |
| Maintenance and Cleaning | Wipe with a soft, dry cloth; do not use liquids or cleaners |
| Safety and Compliance | CE, FCC, UL, RoHS compliant; use only Cisco-approved power adapters |
| Spare Parts and Repairability | Replaceable handset, footstand, and network module; contact Cisco support for service |
| General Information | Supports Cisco Unified Communications Manager (CallManager) and other SIP platforms |
Frequently Asked Questions - CP-9951 CISCO
How do I connect the Cisco CP-9951 to power?
The phone can be powered via Power over Ethernet (PoE) from a PoE-enabled switch, or using an optional AC adapter (Cisco CP-PWR-CUBE-3). If using PoE, simply connect an Ethernet cable to the network port. For the AC adapter, plug the adapter into the phone and a wall outlet.
How do I set up voicemail on the CP-9951?
Voicemail setup is typically configured through the phone system. Press the Messages button (envelope icon) and follow the prompts. If you don't have a voicemail box, contact your system administrator to enable it.
Can I use a headset with this phone?
Yes, the CP-9951 supports headsets via the dedicated RJ-9 headset port or the 2.5mm connector (depending on model). You may need a Cisco-compatible headset for optimal performance.
How do I transfer a call?
During an active call, press the Transfer button, dial the target number, then press Transfer again to complete the transfer. For a blind transfer, press Transfer, dial, and press Transfer again without waiting for an answer.
What should I do if the display is blank?
First, check that the phone is receiving power (PoE or AC adapter). Verify the Ethernet cable is securely connected. If using PoE, ensure the switch port is configured to supply power. If the issue persists, try a factory reset or contact IT support.
How can I clean the phone safely?
Use a soft, lint-free cloth slightly dampened with water (or a mild soap solution) to wipe the exterior. Do not use abrasive cleaners, solvents, or sprays. Avoid getting moisture into openings.
Does the CP-9951 support Gigabit Ethernet?
Yes, it has two Gigabit Ethernet ports (10/100/1000) with an integrated switch. This allows for high-speed network connectivity and a passthrough for a PC.
Can I mount the phone on a wall?
Yes, the CP-9951 can be wall-mounted using a standard wall mount bracket (not included). Some models may require a separate Cisco wall mount kit.
How do I adjust the ringer volume?
With the phone idle, press the Volume up/down buttons to adjust the ringer volume. You'll hear a sample ring. The setting is saved automatically.
What do the line key LEDs indicate?
A steady green LED means the line is free and active. A flashing green indicates an incoming call. A steady red (or orange) means the line is in use or on hold. Refer to your system documentation for exact color meanings.
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