Cisco CP-8851-K9 integrates 5 inches high-resolution widescreen VGA backlit color display. It supports Localized language to meet the needs of global users. Bluetooth 3.0 supports phone book object exchange between devices, two USB ports enhance the usability of call handling by enabling wired or wireless headsets, as well as provide charging capability to mobile devices such as smartphones or tablets. The five programmable line keys support multiple directory numbers or calling features.
Table 1 shows the Quick Spec.
| Product Code | CP-8851-K9 |
| Display | 5” high-resolution (800 x 480) WVGA color display |
| Ethernet Switch | 10/100/1000 |
| Programmable Line Keys | 4 |
| Number of Line Keys | 5 |
| Full Duplex Speakerphone | Yes |
| Wideband Audio | Yes |
| PoE Classification | Class 3 |
| Bluetooth / DECT | Bluetooth |
| USB (Physical Ports) | 2 Ports |
| KEM (Key Expansion Module) | Two Optional KEM |
| Third-party Call Control | Yes |
| Replaceable Bezel | Yes (Black, Silver) |
| Wall Mountable | Yes |
Before you use the Cisco IP Phone 8851, it connects to the corporate IP telephony network.
Figure 2 shows the bottom ports of this IP Phone.
Note:
| Number | Description |
| ① | AC power wall plug (optional) |
| ② | Network port (10/100 SW) connection. IEEE 802.3af power enabled. |
| ③ | Access port (10/100 PC) connection. |
| ④ | Auxiliary port (optional). |
| ⑤ | Handset connection. |
| ⑥ | Analog headset connection (optional). |
| ⑦ | 2 USB ports |
Figure 3 shows the buttons and hardware.
Note:
| Number | Buttons | Number | Buttons |
| ① | Handset light strip | Mute button | |
| ② | Programmable feature
buttons and Session buttons |
Headset button | |
| ③ | Phone screen | Keypad | |
| ④ | Softkey buttons | Volume button | |
| ⑤ | Navigation cluster and Select button | Applications button | |
| ⑥ | Release Button | Messages button | |
| ⑦ | Transfer button | Contacts button | |
| ⑧ | Hold/Resume button | Back button | |
| ⑨ | Conference button | Handset | |
| ⑩ | Speakerphone button | ||
Figure 4 shows key expansion module.
CP-8851-K9 offers up to two optional Key Expansion Modules. The modules should order separately.
Table 2 shows the comparison of Cisco IP Phone 8811, 8831, 8841 and 8851.
| Model | CP-8811-K9 | CP-8831-K9 | CP-8841-K9 | CP-8851-K9 |
| Ethernet Switch | 10/100/1000 | 10/100 | 10/100/1000 | 10/100/1000 |
| Programmable Line Keys | 4 | 4 | 4 | 4 |
| Number of Line Keys | 5 | 1 | 5 | 5 |
| Full Duplex Speakerphone | Yes | Yes | Yes | Yes |
| Wideband Audio | Yes | Yes | Yes | Yes |
| PoE Classification | Class 2 | Class 3 | Class 2 | Class 3 |
| Bluetooth / DECT | No | DECT (mics) | No | Bluetooth |
| Third-party Call Control | Yes | Yes | Yes | Yes |
| Replaceable Bezel | Yes (Black, Silver) | No | Yes (Black, Silver) | Yes (Black, Silver) |
| Wall Mountable | Yes | No | Yes | Yes |
