手机功能
| 重拨 |
Y |
| 主叫号码 |
Y |
| 呼叫等待 |
Y |
| 呼叫驻留 |
Y |
| 快速拨号 |
Y |
| 会议呼叫能力 |
Y |
| 呼叫转移 |
Y |
| 对话机 |
Y |
| 通话保持 |
Y |
| 全双工传输 |
Y |
| 呼叫代接 |
Y |
| 信息等待指示器（MWI） |
Y |
| 请勿打扰功能 |
Y |
技术细节
| 背光键盘 |
Y |
| 手机类型 |
Wired handset |
| 集成语音邮件 |
Y |
| SIP 注册服务器 |
Y |
| 免提听筒电话 |
Y |
| 集成答录机 |
Y |
| 外壳/储存盒材料 |
ABS |
联网
| 支持服务质量（QoS） |
Y |
| 动态主机配置协议客户 |
Y |
| 无线局域网连接 |
N |
| 蓝牙 |
N |
另外
| 呼叫能力 |
Y |
| 以太网连接器 |
Y |
| 以太网路(RJ-45)连接接口数量 |
2 |
3.5” 396×162, IEEE 802.3af, PoE, 207 x 206 x 28 mm, 868 g, ABS, white
The Cisco® IP Phone 7800 Series is a cost-effective, high-fidelity voice communications portfolio designed to improve your organization’s people-centric communications, while reducing your operating costs.
It combines an attractive new ergonomic design with “always-on” reliability and secure encrypted communications. The Cisco® IP Phone 7800 Series 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.
The line keys on each model are fully programmable. You can set up keys to support either lines, such as directory numbers, or call features like speed dialing. You can also boost productivity by handling multiple calls for each directory number, using the multi-call per-line appearance feature. Tri-color LEDs on the line keys support this feature and make the phone simpler and easy to use.
Fixed function keys on all models give you one-touch access to service, messaging, directory, hold/resume, transfer, and conference features. A full-duplex speakerphone lets you set up clear multi-party conferences for flexible, productive collaboration.
The Cisco IP Phone 7800 Series sets a new standard in usability and delivers a context-sensitive user experience. It features a high-resolution 3.5” (396x162) greyscale display with white backlighting on the IP Phone 7821, 7841 and 7861, and a 3.2” (384 x106) display without backlighting on IP Phone 7811, for easy reading. Localized language support, including right-to-left onscreen text, meets the needs of global users.
The Cisco IP Phone 7800 Series is also more energy-efficient and eco-friendly, to support your green initiatives. Each phone supports Power-over-Ethernet (PoE) Class 1 and Cisco’s EnergyWise™, and is Energy Star certified. A standard power-save option is available on the IP Phone 7821, 7841 and 7861 to reduce power consumption during off-hours, save money and maximize energy efficiency.
The IP Phone 7800 Series portfolio is ideal for any mid-sized to large enterprise company that wants to update its phone system from a traditional analog or digital-based system to an IP Communications system. It’s also an excellent choice if you’re seeking to expand your voice communications support with your current Cisco Unified Communications solution. Small businesses who have interest in the Cisco IP Phone 7800 Series, but have investment in or are considering third party hosted call control services, are also candidates for the IP Phone 7800 Series.
