| Model | Cisco Desk Phone 9851 |
| Telephone Type | Desk Telephone |
| Lines Supported | 6 |
| Conference Call Capability | YES |
| Voice Mail Capability | YES |
| Speakerphone | YES |
| Caller ID | YES |
| Call Forwarding | YES |
| Call Hold | YES |
| Call Transfer | YES |
| Display Type | LCD Display |
| Message Waiting Capability | YES |
| Status Indicators | Backlit indicator |
| Volume Control | YES |
| Hearing Aid Compatible | YES |
| Programmable Buttons Qty | 4 |
| Network Protocols | Ethernet |
| Power Over Ethernet (PoE) Support | YES |
| Voice Codecs | OPUS, G.722, G.722.2, iSAC, G.711(a-law/-law), G.729a/b, and iLBC |
| Key / Function Button | Action button, Calendar button, Favorite button, Hold/Resume, Transfer, and Conference keys, Application key, Directory key, Standard keypad, Volume-control toggle key, Speakerphone, Headset, and Mute keys, Navigation and Select key |
Cisco Desk Phone 9851, No-NFC, TAA, Carbon Black

Key Benefits
AI-Powered Summaries from Online Customer Reviews
Eye-Insights™ are generated by proprietary AI that analyzes real online customer reviews to highlight top pros and key product features. While we aim for accuracy, insights are provided “as-is” and individual results may vary.
- Ideal for federal and public sector deployment due to full TAA compliance.
- Reduced hardware risk and downtime with an included 1-year replacement warranty.
- Integrates reliably within Cisco communication ecosystems for enterprise efficiency.
Product Overview
The Cisco Desk Phone 9851 is a business-class communication device tailored for professional environments, featuring a carbon black finish and user-friendly LCD display. It is TAA-compliant, making it ideal for government or public sector deployments, and is manufactured in Mexico to ensure regulatory adherence. Excluding NFC functionality, it focuses on core telephony features that appeal to security-conscious organizations. The device includes a 1-year replacement warranty, reinforcing its reliability in enterprise use cases. Though additional hardware specifics are not available, the phone aligns with Cisco’s commitment to dependable VOIP solutions.
Specifications
Primary Information
Dimensions&Miscellaneous
| Color | Carbon Black |
| Width(Base) | 8.43 Inch |
| Height(Base) | 8.9 Inch |
| Depth(Base) | 1.94 Inch |
| Weight(Base) | 968 g |
Service&Support
| Service & Support Type | Cisco standard 1-year replacement warranty |
Special Feature
| COO | MEXICO |
| TAA compliance | Yes |
UNSPSC Code
| UNSPSC Code | 43191511 |