CP-7811-K9, Cisco 7800 Series IP Phone, 1 Line, G.722 Codec, PoE Support
Cisco CP-7811-K9 Overview
The Cisco IP Phone 7811 delivers advanced IP Telephony features and crystal clear wideband audio performance to deliver an easy-to-use, full-featured voice communications experience on Cisco on-premises and hosted infrastructure platforms and third party hosted call control. It supports one line (available in charcoal only).
Quick Specs
Figure 1 shows the appearance of the CP-7811-K9.
Table 1 shows the Quick Spec.
| Product Code | CP-7811-K9 |
| Screen | 384 x 106 pixel (3.28 in. / 83.3 mm) |
| Ethernet Switch | 10/100 |
| Programmable Line Keys | 0 |
| Number of Line Keys | 0 |
| Full Duplex Speakerphone | Yes (narrowband) |
| Wideband Audio | Optional* |
| PoE Class | 1 |
| Third-party Call Control | Yes |
| Replaceable Bezel | No |
* IP Phone 7811 offers wideband audio with purchase of a wideband handset.
Product Details
Before you use the Cisco IP Phone 7811, it should be connected 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 | Handset connection. |
Figure 3 shows the buttons and hardware.
Note:
| Number | Buttons | Number | Buttons |
| ① | Handset light strip | ⑨ | Mute button |
| ② | Phone screen | ⑩ | Keypad |
| ③ | Softkey buttons | Volume button | |
| ④ | Navigation and Select button | Contacts button | |
| ⑤ | Hold/Resume button | Applications button | |
| ⑥ | Conference button | Messages button | |
| ⑦ | Transfer button | Handset | |
| ⑧ | Speakerphone button | ||
Compare to Similar Items
Table 2 shows the comparison of Cisco IP Phone 7811, 7821, 7841 and 7861.
| Model | CP-7811-K9 | CP-7821-K9 | CP-7841-K9 | CP-7861-K9 |
| Ethernet switch | 10/100 | 10/100 | 10/100/1000 | 10/100 |
| Programable line keys | 0 | 2 | 4 | 16 |
| Number of Line Keys | 0 | 2 | 4 | 16 |
| Full duplex speakerphone | Yes (narrowband) | Yes | Yes | Yes |
| PoE Class | 1 | 1 | 1 | 1 |
| Third-party call control | Planned | Yes | Yes | Yes |
| Replaceable bezel | N/A | Yes | Yes | Yes |
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| C1000-48P-4G-L | C9500-NM-8X | CAB-SPWR-30CM |
| C1000-48T-4G-L | C9800-F-X-K9 | C9200L-STACK-KIT |
| WS-C2960X-24TS-LL | N9K-C93180YC-FX | PWR-C4-950WAC-R |
| WS-C2960X-24PSQ-L | N3K-C3172PQ-XL | C9200-NM-4G |
| WS-C2960X-24PS-L | N2K-C2348UPQ | C9200-NM-4X |
| WS-C2960X-48TS-L | AIR-AP1832I-H-K9 | C9300-NM-4G |
| WS-C2960L-24PS-AP | AIR-AP2802I-H-K9 | C9300-NM-8X |
| WS-C2960L-16TS-LL | C9115AXI-H | GLC-LH-SMD |
| WS-C2960L-8TS-LL | C9120AXI-H | SFP-10G-SR |
| WS-C3560-48FS-S | AIR-AP1562I-H-K9 | SFP-10G-LR |
| WS-C2960X-24PS-L | AIR-AP1562D-H-K9 | SFP-10G-SR-S |
| C9200L-48P-4X-E | C9800-L-C-K9 | SFP-10G-LR-S |
| C9200L-48P-4G-E | C9800-L-F-K9 | GLC-TE |
| C9200L-24T-4G-E | AP505 | SFP-H10GB-CU2M |
| C9300-24T-A | AP515 | MA-CBL-40G-3M |
| C9300-48T-A | CP-3905 | GLC-LH-SMD= |
| C9300-24S-A | CP-7821-K9 | ISR4331/K9 |
| C9300-48S-A | CP-8832-MIC-WIRED | ISR4331/K9 RF |
| C9300-48P-E | CS-MIC-TABLE-J | FPR2110-ASA-K9 |
| C9300-24P-E | AIR-AP3802I-E-K9 | FPR2110-ASA-K9 |
| C9300L-24T-4G-E | C1111-8P | FPR2120-ASA-K9 |
| C9300L-48T-4G-E | PWR-C5-125WAC | FPR2130-ASA-K9 |
| C9300-NM-8X | PWR-C5-1KWAC | C9200-NM-4G= |
| C9400-LC-24S | PWR-C6-125WAC | C9200-NM-4G= |
| C9400-LC-48S | STACK-T1-50CM | C9200L-24P-4G-CE |
| C9500-24Y4C-A | STACK-T1-1M | C9200L-24P-4G-CE |
| C9500-48Y4C-A | STACK-T1-3M | C9200L-48P-4G-E |
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