Get started with Cisco Desk Phone 9800 Series

The graphics of Cisco Desk Phone 9841, 9851, and 9861

Cisco Desk Phone 9800 Series is designed to facilitate a convenient and flexible collaboration experience during calls and meetings for diverse roles, work modes, and workplaces.

The available hardware features vary flexibly across models to meet different work settings. See the following table for the supported features on each model.

Table 1. Key hardware features
Features	Cisco Desk Phone 9841	Cisco Desk Phone 9851
Screen	3.5" Grayscale screen	3.7" Color screen
Lines	4	6
Bluetooth®	No	No
Wi-Fi	No	No
USB ports	USB-A port x 1	USB-A port x 1 USB-C port x 1
KEM support	No	Yes
PoE support	PoE Class 2	PoE Class 3

For details about your phone specifications and features, see Cisco Desk Phone 9800 Series Data Sheet.

What's in the box

The following items came with your phone. If any items are missing, contact your administrator.

Handset x 1
Foot stand x 1
Handset cable x 1
Ethernet cable x 1
Pointer card x 1, containing the links to the product help and compliance information

If your network doesn't support Power over Ethernet (PoE), order a power adapter from Cisco. For the list of available power adapters, see the Ordering information section in Cisco Desk Phone 9800 Series Data Sheet.

Hardware and buttons

Your phone has several buttons that allow you to access to the phone features.

The features vary with models. See the information for your phone model.

9841
9851

the front view of phone 9841 — ***Cisco Desk Phone 9841 front view***

Table 2. Hardware and buttons on the front
Hardware Feature	Purpose
1. Phone screen	3.5" grayscale screen (Resolution 384 x 160)
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 : Place an active call on hold and resume the held call. Transfer : Transfer a call. Conference : Create a conference call.
8. Headset, Speakerphone, and Mute	Headset : Toggle the headset on. When the headset is on, the button lights up. To leave headset mode, pick up the handset or press Speakerphone . Speakerphone : Toggle the speakerphone on or off. When the speakerphone is on, the button lights up. Mute : 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 : Access Voicemail, Help Desk list, and message services, if configured. Settings : Access the settings menu. Contacts : Access directories.
12. Front Arc LED	Indicates the states of the phone, calls,and messages.
13. 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.

the back view of phone 9841 — ***Cisco Desk Phone 9841 back view***

Table 3. 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. Auxiliary port	Used for collecting console logs.
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.

the right-side view of phone 9841 — ***Cisco Desk Phone 9841 right-side view***

Table 4. Ports on the right side of the phone
Port	Description
1. USB-A port	Connect your USB-A headset or Bluetooth^® headset dongle to this port. You can only connect a USB-powered device for charging when the phone is powered from a wall socket. See the USB port specifications and the best practices for device charging in Use your desk phone to charge USB-powered devices.
2. Foot stand	Supports your phone standing on a desk.

the front view of phone 9851 — ***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 : Place an active call on hold and resume the held call. Transfer : Transfer a call. Conference : Create a conference call.
8. Headset, Speakerphone, and Mute	Headset : Toggle the headset on. When the headset is on, the button lights up. To leave headset mode, pick up the handset or press Speakerphone . Speakerphone : Toggle the speakerphone on or off. When the speakerphone is on, the button lights up. Mute : 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 : Access Voicemail, Help Desk list, and message services, if configured. Settings : Access the settings menu. Contacts : 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.

the back view of phone 9851 — ***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.
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.

the right-side view of phone 9851,9861,and 9871 — ***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.
2. Foot stand	Supports your phone standing on a desk.

Connect your phone

Use the information in this section to connect your phone in a wired network.

Your phone supports Power over Ethernet (PoE). If your network supports PoE, an Ethernet connection powers up your phone and connects it to the network. You don't have to connect the shipped power adapter.

Phone ports vary by model. The 9851 diagrams used in the following steps show the ports to connect. Locate the right ports on your phone when you set up the phone.

Connect the shipped handset to the handset port.

the graphic for installing handset

Insert the foot stand to the slots on the back of the phone.

The foot stand is designed for two tilt angles. Try both tilt angles to find the best position for your viewing preferences. To switch to the other angle, unplug the foot stand, flip it over, and reinsert it to the slots.

the graphic for installing footstand

Connect your phone to the network with the shipped Ethernet cable.

If your network supports PoE, your phone powers up when you connect it to the network. Otherwise, go to the next step to connect the power adapter.

the graphic for connecting Ehternet

(Optional) Connect your phone to a power socket with the power adapter that you purchased separately from Cisco.

Your phone boots up automatically when it connects to the power source.

If your network supports PoE, skip this step.

the graphic for connecting power

What to do next

Register your phone

Depending on how your administrator configures your phone on the call control system, you might use one of the following methods to register your phone:

Method 1: No action is required during the phone registration. The registration is done automatically.
Method 2: A 16-digit activation code is required during the phone registration. You can get it from your administrator in advance. Enter the activation code when you are prompted for it.
Method 3: An alternate TFTP server address is required if your phone is missing a TFTP address. You can get it from your administrator when this situation occurs. You need to manually enter the alternate TFTP server to continue the registration.

By default, 802.1X authentication is disabled on your phone.

If your network uses the 802.1X protocol, ensure that you enable 802.1X authentication on your phone by accessing Settings the Settings key > Network and service > Security settings. Otherwise, your phone will fail to connect to the network.

Your phone gets registered automatically when it boots up and connects to the network. In this scenario of auto registration, you don't need to enter any input as the whole registration proceeds automatically.

Before you begin

You have turned on your phone.
Your administrator has configured your phone on the call control system.

Press Start on the Welcome screen.

If you don't take any action, the phone goes to the next step at timeout.

Your phone tries to connect to the network. If you use the wireless network, perform the next step. Otherwise, skip it.

(Optional) Choose your wireless network from the list, enter your credentials, and press Apply.

Cisco Desk Phone 9841 and 9851 don't support Wi-Fi.

Press Next when the screen displays that your phone successfully connects to Ethernet or WiFi.

If you don't take any action, the phone goes to the next step at timeout. Then the phone starts checking the configuration, and then starts the registration automatically.

If you are prompted to choose a call service, do one of the following actions:

If your phone will be registered on the Cisco Unified Communications Manager (Unified CM), select Cisco UCM > Register.
If your phone will be registered on the Webex Calling, select Cisco cloud service > Register.

Contact your administrator if you don't know which service to select.

Typically, the registration takes about 3 minutes depending on the network condition.

After the registration succeeds, your primary line name or number displays on the top left of the phone screen.

When the registration is complete, you will be prompted to enable or disable the noise removal feature.

If you don't take any action, the phone enables the feature at timeout.

This feature can filter out background noises during a call. If you choose to disable the feature now, you can still enable it later.

After your phone boots up, it checks the configuration automatically, and you will be prompted to enter an activation code. If you don't have a new activation code, contact your administrator.

Activation codes are used to set up your new phone. They can only be used once, and expire after 1 week.

You might be prompted to choose a call service during the registration, depending on your network condition and your administrator's configurations on the call control system.

Before you begin

You have turned on your phone.
Your phone connects to a wired or wireless network.
Get a 16-digit activation code from your administrator.

Press Start on the Welcome screen.

If you don't take any action, the phone goes to the next step at timeout.

Your phone tries to connect to the network. If you use the wireless network, perform the next step. Otherwise, skip it.

(Optional) Choose your wireless network from the list, enter your credentials, and press Apply.

Cisco Desk Phone 9841 and 9851 don't support Wi-Fi.

Press Next on the phone screen showing that your phone successfully connects to the network.

If you don't take any action, the phone goes to the next step at timeout. Then the phone starts checking the configuration, and then starts the registration automatically.

If you are prompted to choose a call service, do one of the following actions according to your network environment and the platform where the phone will be registered:

If your phone connects to the corporate network and will be registered to the Cisco Unified Communications Manager (Unified CM), select Cisco UCM > Register.
If your phone connects to the corporate network and will be registered to the Webex Calling, select Cisco cloud service > Register.
If your phone uses Mobile and Remote Access (MRA) to connect to the corporate network when it's away from the office, select Cisco cloud service > Register.

Contact your administrator if you don't know which service to select.

When prompted for an activation code, enter your activation code, and press Activate.

Your phone starts the registration immediately. Typically, it takes about 3 minutes depending on the network condition.

After the registration succeeds, your primary line name or number displays on the top left of the phone screen.

When the registration is complete, you will be prompted to enable or disable the noise removal feature.

If you don't take any action, the phone enables the feature at timeout.

This feature can filter out background noises during a call. If you choose to disable the feature now, you can still enable it later.

In some situation, the Cisco DHCP server doesn't contain the network information of the TFTP servers. To accomplish the registration, you need to manually enter an alternate TFTP server address that your administrator provides.

Before you begin

You have turned on your phone.
Your phone connects to a wired or wireless network.
Get a TFTP server address from your administrator.
Get a 16-digit activation code from your administrator, if needed.

Press Start on the Welcome screen.

If you don't take any action, the phone goes to the next step at timeout.

Your phone tries to connect to the network. If you use the wireless network, perform the next step. Otherwise, skip it.

(Optional) Choose your wireless network from the list, enter your credentials, and press Apply.

Cisco Desk Phone 9841 and 9851 don't support Wi-Fi.

Press Network.

The screen shows the message depending on how your phone connects to the network.

Select Network settings on the Network connection screen.

Toggle on Alternate TFTP in the IPv4 section.

Enter an IP address in TFTP Server <n>, where <n> represents the type of the TFTP server.

TFTP Server 1 is the primary server, TFTP Server 2 is the secondary server.

Press Apply.

The registration starts automatically. If your phone requires an activation code to continue, do the following:

Get an activation code from your administrator if you don't receive it yet.
Enter your activation code, and press Activate.

Typically, the registration takes about 3 minutes depending on the network condition.

After the registration succeeds, your primary line name or number displays on the top left of the phone screen.

When the registration is complete, you will be prompted to enable or disable the noise removal feature.

If you don't take any action, the phone enables the feature at timeout.

This feature can filter out background noises during a call. If you choose to disable the feature now, you can still enable it later.

Need more help?

See the following sections for more help information:

To look for more documentation about your phone, go to Help Center.
To look for technical support, go to Cisco technical support.
To view the hardware warranty terms, go to Cisco one-year limited hardware warranty terms.

Help Center

Go to the Cisco Desk Phone 9800 Series Help home page to get more help content about your phone. If you don't find the topic of your interest there, try to search for it and use the filters on the left to narrow down the results, if necessary.

Technical support

Cisco provides around-the-clock technical support services, both online and over the phone to all customers, partners, resellers, and distributors who hold valid Cisco service contracts.

You should have your Cisco.com User ID, Contract, and Serial numbers ready when you contact Cisco Support to prevent any delays with your support request.

In addition, support staff need the following information:

Serial number—Every device has a serial number on the back.
Time and date issue occurred—Support staff use device logs or cloud metrics to troubleshoot issues. It is helpful to have the approximate local time and date.
Device Logs—Support staff may require the device logs to identify the root cause of your issue.
A brief description—Include any actions prior to the incident.

Most firmware issues can be resolved by support staff without a Return Material Authorization (RMA). It is best to use the RMA process for hardware issues.

You can find a list of Cisco worldwide support centers at https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html.

Cisco one-year limited hardware warranty terms

Special terms apply to your hardware warranty and services that you can use during the warranty period.

Your formal Warranty Statement, including the warranties and license agreements applicable to Cisco software, is available at Product Warranties.