Title: Get started with Cisco Desk Phone 9800 Series URL Source: https://help.webex.com/29odsb/ Markdown Content: ![Image 1: the front view of phone 9851](https://cisco-api.ingeniuxondemand.com/DITA/content/en/us/td/i/400001-500000/470001-480000/478001-479000/478789.png) **_Cisco Desk Phone 9851 front view_** Table 5. Hardware and buttons on the front | Hardware Feature | Purpose | | --- | --- | | 1\. Phone screen | 3.7" color screen (Resolution 480 x 240) | | 2\. Top 360 LED | Indicates the states of call, message, and the phone. | | 3\. Action button | Press the button to place a service call, such as an emergency call, if configured. | | 4\. Line buttons and programmable feature buttons | Access your phone lines, features, and call sessions. | | 5\. Softkey buttons | Access to functions and services. | | 6\. NFC tag | The location of the NFC tag. The NFC feature will be available in the later firmware release. | | 7\. Hold/Resume, Transfer, and Conference | Hold/Resume ![Image 2: the Hold key](https://cisco-api.ingeniuxondemand.com/DITA/content/en/us/td/i/400001-500000/470001-480000/478001-479000/478220.png) : Place an active call on hold and resume the held call. Transfer ![Image 3: the Transfer key](https://cisco-api.ingeniuxondemand.com/DITA/content/en/us/td/i/400001-500000/470001-480000/478001-479000/478221.png) : Transfer a call. Conference ![Image 4: the Conference key](https://cisco-api.ingeniuxondemand.com/DITA/content/en/us/td/i/400001-500000/470001-480000/478001-479000/478222.png) : Create a conference call. | | 8\. Headset, Speakerphone, and Mute | Headset ![Image 5: the Headset key](https://cisco-api.ingeniuxondemand.com/DITA/content/en/us/td/i/400001-500000/470001-480000/478001-479000/478224.png) : Toggle the headset on. When the headset is on, the button lights up. To leave headset mode, pick up the handset or press Speakerphone ![Image 6: the Speaker key](https://cisco-api.ingeniuxondemand.com/DITA/content/en/us/td/i/400001-500000/470001-480000/478001-479000/478223.png) . Speakerphone ![Image 7: the Speaker key](https://cisco-api.ingeniuxondemand.com/DITA/content/en/us/td/i/400001-500000/470001-480000/478001-479000/478223.png) : Toggle the speakerphone on or off. When the speakerphone is on, the button lights up. Mute ![Image 8: the Mute key](https://cisco-api.ingeniuxondemand.com/DITA/content/en/us/td/i/400001-500000/470001-480000/478001-479000/478225.png) : Toggle the microphone on or off. When the microphone is muted, the button lights up. | | 9\. Alphanumeric keypad | Use the keypad to input numbers, letters, and symbols. | | 10\. Volume button | Adjust the handset, headset, and speakerphone volume (off hook), and the ringer volume (on hook and when the phone is idle). | | 11\. Favorite, Settings, and Contacts | Favorite ![Image 9: the favorite key](https://cisco-api.ingeniuxondemand.com/DITA/content/en/us/td/i/400001-500000/470001-480000/478001-479000/478217.png) : Access Voicemail, Help Desk list, and message services, if configured. Settings ![Image 10: the Settings key](https://cisco-api.ingeniuxondemand.com/DITA/content/en/us/td/i/400001-500000/470001-480000/478001-479000/478218.png) : Access the settings menu. Contacts ![Image 11: the Contacts key](https://cisco-api.ingeniuxondemand.com/DITA/content/en/us/td/i/400001-500000/470001-480000/478001-479000/478219.png) : Access directories. | | 12\. Front Arc LED | Indicates the states of the phone, calls,and messages. | | 13\. Calendar button | Tap the Calendar button to open your calendar. This button is only accessible if your administrator has set up the Calendar service on your phone. | | 14\. Navigation Cluster | The Navigation Cluster consists of the Navigation Ring and Select button. Used to scroll through menus, highlight items and select the highlighted item. | ![Image 12: the back view of phone 9851](https://cisco-api.ingeniuxondemand.com/DITA/content/en/us/td/i/400001-500000/470001-480000/478001-479000/478790.png) **_Cisco Desk Phone 9851 back view_** Table 6. Ports on the back of the phone | Port | Description | | --- | --- | | 1\. Power port | If your Ethernet doesn't support PoE, connect the power adapter to this port to power up your phone. The power adapter is purchased separately. | | 2\. USB-C port | Connect your USB-C headset. Charges external devices, such as Cisco Headsets, mobile phones, etc. See the USB port specifications and the best practices for device charging in [_Use your desk phone to charge USB-powered devices_](https://help.webex.com/en-us/article/lukemeb/). | | 3\. Ethernet port | Connect this port to your Ethernet port on the wall or on your router with the shipped Ethernet cable. | | 4\. PC port | Used for getting network connection from your laptop or another IP phone. | | 5\. Kensington security slot | To physically secure the phone in public places, attach an anti-theft cable lock to the slot. | | 6\. Handset port | Connect your handset to this port with the shipped handset cable. | | 7\. Cable socket | Used for holding the handset cable. | ![Image 13: the right-side view of phone 9851,9861,and 9871](https://cisco-api.ingeniuxondemand.com/DITA/content/en/us/td/i/400001-500000/470001-480000/478001-479000/478791.png) **_Cisco Desk Phone 9851 right-side view_** Table 7. Ports on the right side of the phone | Port | Description | | --- | --- | | 1\. USB-A port | * Connect your USB-A headset or Key Expansion Module (KEM) to this port. * Connect a USB-powered device for charging, such as Cisco Headsets, mobile phones, etc. See the USB port specifications and the best practices for device charging in [_Use your desk phone to charge USB-powered devices_](https://help.webex.com/en-us/article/lukemeb/). | | 2\. Foot stand | Supports your phone standing on a desk. |