Compare Cisco Telephones
Comparing 3 products side-by-side — specifications, pricing and stock. Showing Cisco products in the Telephones category.
| Specification | Cisco Cisco Desk Phone 9851 - VoIP phone - with Trusted Platform Module (TPM) 2.0 with caller ID/call waitingDP-9851-K9= £322.37 £386.84 inc VAT | ||
|---|---|---|---|
| General | |||
| Body Colour | — | — | Carbon black |
| Body Material | — | — | ABS polycarbonate, 74% post-consumer recycled plastic |
| Compatible Platforms | — | — | Cisco BroadWorks, Cisco Webex Calling, Cisco Webex Dedicate Instance (DI), Asterisk |
| Integrated Components | — | — | Trusted Platform Module (TPM) 2.0 |
| Product Type | — | — | VoIP phone |
| Weight | — | — | 968 g |
| Display | |||
| Backlit | — | — | Yes |
| Diagonal Size | — | — | 3.7" |
| Display Languages | — | — | Brazilian Portuguese, Catalan, Czech, Danish, Dutch, Finnish, French, French Canadian, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Spanish, Swedish, Turkish, Ukrainian, Chinese (simplified), Chinese (traditional), Chinese (Traditional, Hong Kong), Spanish (Columbia), UK English, US English |
| Display Location | — | — | Base |
| Display Resolution | — | — | 240 x 480 pixels |
| Type | — | — | LCD display - colour |
| Power | |||
| Power Consumption | — | — | 2.82 W (power adapter, display off mode), 2.69 W (PoE, display off mode), 0.24 W (power adapter, deep sleep mode), 0.69 W (PoE, deep sleep mode) |
| Miscellaneous | |||
| Cables Included | — | — | Network cable |
| Connections | — | — | Headset jack / RJ-9, 2 x network / RJ-45, USB / 4 PIN USB Type A, USB Type-C / 24 pin USB-C |
| Hearing Aid Compatible | — | — | Yes |
| Placing / Mounting | — | — | Desktop |
| Phone features | |||
| Additional Functions | — | — | One button to join (OBTJ), QR code access, conference mode, mute, Music on hold, Do not disturb, call recording, sleep mode, Kensington security slot |
| Call Services | — | — | Voice Mail, Caller ID, Call Waiting, Call Hold, Call Transfer, Call Forwarding, Call park/pickup |
| Caller ID Type | — | — | Caller ID/call waiting |
| Conference Call Capability | — | — | Yes |
| Dialer Location | — | — | Base |
| Indicators | — | — | Speakerphone indicator, headset, mute indicator, calendar indicator, select indicator, line status indicator, status, busy lamp field (BLF) |
| Programmable Buttons Qty | — | — | 6 |
| Speakerphone | — | — | Yes |
| Volume Control | — | — | Yes |
| Wireless Interface Provided | — | — | NFC |
| IP Telephony | |||
| Compatible Software | — | — | Cisco WebEx, Cisco Unified Communications Manager |
| IP Address Assignment | — | — | DHCP, static |
| Lines Supported | — | — | 46 lines |
| Main Features | — | — | Integrated Ethernet switch |
| Network Features | — | — | Class 3 PoE |
| Network Ports Qty | — | — | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
| Network Protocols | — | — | IPv4, IPv6, DHCP, GARP, DNS, TFTP, HTTPS, VLAN, RTP, RTCP, Cisco Discovery Protocol (CDP), Link Layer Discovery Protocol (LLDP), Link Layer Discovery Protocol - Media Endpoint Discovery (LLDP-MED) |
| Power Over Ethernet (PoE) Support | — | — | Yes |
| Quality of Service | — | — | IEEE 802.1Q (VLAN) |
| Security | — | — | IEEE 802.1X, EAP-FAST, EAP-TLS, FIPS 140-2, TLS 1.3, SRTP |
| Voice Codecs | — | — | Opus, G.722, G.722.2, iSAC, G.711a-law, G.711μ-law, G.729a, G.729b, iLBC |
| Voice Features | — | — | Acoustic echo cancellation (AEC), forward error correction (FEC), automatic gain control (AGC), comfort noise generation (CNG), voice activity detection (VAD), packet loss concealment (PLC), silence suppression, acoustic shock protection, adaptive jitter buffer (AJB), dual tone multi-frequency (DTMF), HD audio, ultrasonic support |
| VoIP | — | — | Yes |
| VoIP Protocols | — | — | SIP, SDP, RTCP, RTP, SRTP |
| Weight & dimensions | |||
| Depth | — | — | 21.424 cm |
| Height | — | — | 4.94 cm |
| Weight | — | — | 968 g |
| Width | — | — | 22.606 cm |
| Environmental Parameters | |||
| ENERGY STAR Certified | — | — | Yes |
| Manufacturer Warranty | |||
| Service & Support | — | — | Limited warranty - replacement - 1 year |
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