IP Phone Cisco DP-9841-K9= Black 4 lines LCD

The Cisco DP-9841-K9= IP Phone is a wired desk phone with a 3.5" LCD display (384 x 160 pixels) and support for four lines. Designed for modern office environments, it runs PhoneOS and integrates secure enterprise calling, meetings, desk reservation and emergency notifications in a single device. The phone supports common voice codecs such as G.711 and OPUS and offers calendar integration with one-click join for business meetings. Its black design and compact form factor suit shared workspaces and individual desks.

Advantages

The DP-9841-K9= consolidates multiple workplace features—secure calling, meeting join, desk reservation and notifications—into one unit, eliminating the need for separate devices. The 3.5" LCD provides clear call and calendar information, while support for codecs like G.711 and OPUS ensures voice compatibility and quality. PhoneOS simplifies the user interface and aligns the desk phone experience with Cisco RoomOS devices for consistent use across desk and meeting-room environments.

Suitable for

• Office desks in enterprise and SMB environments
• Reception and shared workspace areas
• Conference and meeting participants needing calendar and one-click join
• Environments requiring secure voice communications and emergency notifications

Key specifications

• Model: Cisco DP-9841-K9=
• Display: 3.5" LCD, 384 x 160 pixels
• Lines: 4-line support
• Voice codecs: G.711, OPUS (among others)
• Connectivity: Wired IP phone
• Colour: Black
• Weight: 0.954 kg

How to use

Connect the DP-9841-K9= to your office network using the wired Ethernet port and power it according to your deployment (PoE or adapter as supported by your IT). Configure the phone through your Cisco management platform or local provisioning using the device MPN. Use the on-screen LCD and PhoneOS menus to register accounts, view calendar entries and join scheduled meetings with one click. Use the handset, headset port or speakerphone according to call needs.

Recommendations

For optimal performance, provision the phone through your Cisco management system, enable PoE where available, and keep PhoneOS updated. Place the phone on a stable desk surface and integrate calendar services for reliable one-click meeting joins and accurate desk-reservation information.