The CP-7811-K9 is a Cisco IP Phone 7811 — a single-line entry-level VoIP phone designed for lobbies, common areas, and cost-conscious enterprise deployments, featuring wideband audio, PoE, full-duplex speakerphone, and enterprise-grade security.
Single Line VoIP | 3.28" Greyscale Display | Full-Duplex Speakerphone | Wideband Audio (G.722) | PoE Class 1 | Dual 10/100 Ethernet Ports | TLS + SRTP Encryption | 802.1X Authentication
Specifications:
Brand: Cisco | Model: CP-7811-K9 | Series: IP Phone 7800 | Lines: 1 | Display: 3.28" Non-Backlit Greyscale, 384x106 pixels | Ethernet: 2x 10/100 (Network + PC Passthrough) | Power: PoE Class 1 or AC Adapter (sold separately) | Signaling: SIP | Protocols: CDP, SRTP
Codecs:
G.711a/μ | G.722 | G.729a | iLBC
Security:
TLS Signaling | SRTP Media Encryption | 802.1X Authentication | Secure Boot | HTTPS Provisioning
Compatible Platforms:
Cisco Unified Communications Manager 9.3+ | Cisco Webex Calling | Cisco Hosted Collaboration | Third-Party SIP Platforms
Features:
Full-Duplex Speakerphone | Narrowband Handset (Wideband optional) | XML + CTI Application Access | Cisco EnergyWise | Optional Wall Mount
The CP-7811-K9 is a Cisco IP Phone 7811 — a single-line entry-level VoIP phone designed for lobbies, common areas, and cost-conscious enterprise deployments, featuring wideband audio, PoE, full-duplex speakerphone, and enterprise-grade security.
Single Line VoIP | 3.28" Greyscale Display | Full-Duplex Speakerphone | Wideband Audio (G.722) | PoE Class 1 | Dual 10/100 Ethernet Ports | TLS + SRTP Encryption | 802.1X Authentication
Specifications:
Brand: Cisco | Model: CP-7811-K9 | Series: IP Phone 7800 | Lines: 1 | Display: 3.28" Non-Backlit Greyscale, 384x106 pixels | Ethernet: 2x 10/100 (Network + PC Passthrough) | Power: PoE Class 1 or AC Adapter (sold separately) | Signaling: SIP | Protocols: CDP, SRTP
Codecs:
G.711a/μ | G.722 | G.729a | iLBC
Security:
TLS Signaling | SRTP Media Encryption | 802.1X Authentication | Secure Boot | HTTPS Provisioning
Compatible Platforms:
Cisco Unified Communications Manager 9.3+ | Cisco Webex Calling | Cisco Hosted Collaboration | Third-Party SIP Platforms
Features:
Full-Duplex Speakerphone | Narrowband Handset (Wideband optional) | XML + CTI Application Access | Cisco EnergyWise | Optional Wall Mount