Type | IP Phone |
Model | Cisco IP Phone 8851 with MPP |
Form Factor | Desktop |
Weight (Base) | 2.62 lbs. |
Power Requirements | IEEE 802.3af Power over Ethernet (PoE) |
Warranty | 1-year replacement warranty |
Cisco IP Phone 8851 with MPP, TAA Compliant, PoE Support



Key Benefits

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- Designed for business-grade telephony with advanced call handling features and broad codec support.
- Power over Ethernet capability enables flexible and clutter-free installation in professional environments.
- TAA compliance positions it as an ideal choice for government and regulated sector procurement.
Product Overview
The Cisco IP Phone 8851 with Multiplatform Firmware (MPP) is a robust, enterprise-grade VoIP solution built for collaborative environments. Supporting advanced features like conferencing, voicemail, call forwarding, and speakerphone, this phone ensures efficient communication flow. Its extensive codec support (G.711, G.722, G.729, iLBC, iSAC, OPUS) guarantees optimized audio quality over VoIP networks. Featuring Power over Ethernet (PoE) for simplified setup and hearing aid compatibility for accessibility, it suits modern workplace demands. The device's TAA compliance enables it for U.S. federal use, and the included 1-year replacement warranty reflects Cisco's commitment to support and reliability.
Specifications
Product Overview
Wireless Features
Wi-Fi Support | No |
Bluetooth Version | 3.0 |
Bluetooth Features | Wireless headset connectivity and mobile device pairing |
Compliance & Origin
Country of Origin | Mexico |
TAA Compliant | Yes |
Regulatory Compliance | FCC Part 15 (CFR 47) Class B, AS/NZS, CE |
Certifications | UL 60950-1, CAN/CSA C22.2 No. 60950-1 |
Advanced Security Features
Transport Layer Security (TLS) | Yes |
Secure Real-Time Transport Protocol (SRTP) | Yes |
Digest Authentication | Yes |
HTTPS Secure Provisioning | Yes |
Interfaces
Ethernet Ports | 2 x 10/100/1000 Mbps (RJ-45) |
PC Port | Yes (Gigabit passthrough) |
PoE Support | Yes |
USB Port | 1 x USB 2.0 Type A (for headset or charging mobile devices) |
Bluetooth | Bluetooth 3.0 for headset connectivity |
Auxiliary Port (Expansion Module) | Yes |
Headset Port | 1 x RJ-9 |
Physical & Environmental
Width (Base) | 10.13 Inch |
Height (Base) | 9.02 Inch |
Depth (Base) | 1.57 Inch |
Operating Temperature | 32°F to 104°F (0°C to 40°C) |
Storage Temperature | -22°F to 140°F (-30°C to 60°C) |
Operating Humidity | 10% to 90% (noncondensing) |
Storage Humidity | 10% to 95% (noncondensing) |
Mounting Option | Desktop; wall-mount kit sold separately |
Cloud Management & Licensing
Multiplatform Firmware (MPP) | Yes |
Cloud Managed System Compatibility | Compatible with BroadSoft, Asterisk, Metaswitch, RingCentral, and other SIP platforms |
Web-based Configuration | Yes |
Licensing Model | Open SIP (3PCC) — No Cisco Call Manager license required |
Telephony Features
Conference Call Capability | Yes |
Voice Mail Capability | Yes |
Speakerphone | Yes |
Caller ID | Yes |
Call Forwarding | Yes |
Call Hold | Yes |
Call Transfer | Yes |
Message Waiting Indicator | Yes |
Volume Control | Yes |
Hearing Aid Compatibility | Yes |
Voice Codecs Supported | G.711 a-law and mu-law, G.722, G.729a/b, iLBC, iSAC, OPUS, G.722.1, G.722.2 |
Display | 5-inch high-resolution (800 x 480) widescreen VGA color display |
Navigation Cluster | 5-way navigation cluster and menu key |
Programmable Line Keys | 5 line keys with tri-color LED indicators |
Ringtones | Selectable ringtones with volume control |