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Details:
Description
Feature / Spec 9811 / 9841 / 9851 9861 9871
Display 3.7" color (480×240) — 9841/9851; 9811 uses smaller display 5" color (800×480) 5" color touch (1280×720)
Touch / Line Keys No touch (physical keys + optional Key Expansion Module) No touch (keys + optional KEM) Touch screen (plus optional KEM)
Hot-desking / Desk Reservation Yes Yes Yes
Action Button (Programmable) Yes Yes Yes
Audio / Speaker / Noise Removal AI-driven noise removal (send), wideband audio possible AI noise removal (send & receive), large speaker + enhanced bass AI noise removal (send & receive), enhanced speaker, wideband audio
Connectivity / Ports Ethernet, USB-A, PC pass-through port Ethernet, USB-A / USB-C, PC pass-through Ethernet, USB-C, PC pass-through
Platform / OS Support PhoneOS — works with Cisco Unified Communications Manager (CUCM), Webex Calling, BroadWorks, and other 3rd-party cloud/hosted calling platforms
Features • Desk reservation / hot-desking
• Customizable action button (emergency, paging, broadcast, etc.)
• One-Button-to-Join meetings (when registered via Webex Calling)
• Enterprise-grade security (TPM 2.0, TLS 1.3, secure boot, image auth)
• Energy-efficient design & sustainability (≥ 74% post-consumer recycled plastic)
Sustainability & Compliance EnergyStar-certified; uses ≥ 74% post-consumer recycled (PCR) plastic; energy-saving modes and reduced packaging
Use Cases / Ideal For Standard office desks, hot-desking setups, shared workspaces Users needing larger screen, better speakerphone, enhanced audio & noise removal Knowledge workers, managers: touchscreen UI, advanced features, collaboration-heavy workflows

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