Supported Models

IP Phones (desk phones)

The following Cisco IP Phones support Webex Calling:

  • Cisco IP Phone 6800 Series Multiplatform Phones (Audio phones—6821, 6841, 6851, 6861, 6861 Wi-Fi, 6871, 6871 with color display)

  • Cisco IP Phone 7800 Series Multiplatform Phones (Audio phones—7811, 7821, 7841, 7861). See note below.

  • Cisco IP Phone 8800 Series Multiplatform Phones

    • Audio phones—8811, 8841, 8851, 8861

    • Video phones—8845, 8865


The Cisco IP 7821 and 7861 require a V03 or later hardware version to convert to MPP.

Cisco IP 7841 requires a V04 or later hardware version to convert to MPP.

You can check the label on the back of the phone to find your version (VID).

Your Cisco multiplatform device must run software version 11.0 or later (Cisco Webex Phone OS). To onboard your device using an activation code, firmware 11.2.3MSR1 is required.

To check which phone model and platform you have, press Applications and select Status > Product Information. The Model number field shows your phone model.

DECT Phones

Cisco IP DECT 6800 Series with Multiplatform Firmware

  • Cisco IP DECT 6823 Handset Lightweight Handset

  • Cisco IP DECT 6825 Handset

  • Cisco IP DECT 6825 Handset Ruggedized

  • Cisco IP DECT DBS 110 Single-Cell Base Station

  • Cisco IP DECT 210 Multi-Cell Base-Station (Singlecell Mode Only)

Conference Phones

The following conference phones support Multiplatform Firmware:

  • Cisco IP Conference Phone 7832

  • Cisco IP Conference Phone 8832


Cisco Unified IP Conference Phone 8831 isn't supported.

Analog Telephone Adapters (ATAs)

  • ATA191 Multiplatform

  • ATA192 Multiplatform

  • VG400 ATA

  • AudioCodes MediaPack 1288 and 124E (On the Webex Calling platform, the MP-124E only supports 17 ports due to the mandatory encryption requirements.)

ATAs connect non-IP devices, such as analog phones, fax machines, and overhead paging systems, to your network and allow them to act as Webex Calling devices.

Phone Accessories

The following phone accessories support Cisco IP Phones with Multiplatform Firmware:

Use the following SKUs when you order an expansion module for a multiplatform phone:

  • Cisco IP Phone 6851—CP-68KEM-3PCC=

  • Cisco IP Phone 8851, 8861, and 8865—CP-8800-A-KEM-3PC=, CP-8800-V-KEM=, CP-8800-A-KEM=

  • Cisco IP Phone 8851, 8861, and 8865—CP-8800-V-KEM-3PC=, CP-8800-V-KEM=, CP-8800-A-KEM=

Key Expansion Module Limitations

Audio (A version) and Video (V version) Key Expansion Modules can be used interchangebly on supported devices, with these limitations:

  • Key expansion modules connected to multiplatform phones can only be used for monitoring line overflow and manual long-press, speed-dial assignment.

  • Key expansion modules connected to multiplatform phones only support default background images.

  • Key expansion modules are used as overflow for Webex Calling and keys cannot be specifically assigned. If an administrator assigns more monitored lines than the phone can handle, the line status overflows to the key expansion module. For more information, see Cisco IP Phone 6800 Series and Cisco IP Phone 8800 Series Multiplatform Phones.

Cisco Webex Room, Board, and Desk Devices The following Room, Desk, and Board devices are fully supported on the Webex platform. They do not require a Webex Calling license unless numeric dialing for PSTN and extension calling is required. For PSTN and extension calling, the following licenses are required:
  • Device registered to a User in Personal Mode—A Webex Calling Professional license, assigned to the user, is required.

  • Device registered to a Workspace—A Webex Calling Workspaces license, assigned to the device, is required.

For more information about these devices, go here.

To activate your Desk, Room, or Board device on Cisco Webex, the device must run software version CE8.3.4 or later or Room OS, depending on the device type.

You must use a TRC6 remote control with the SX20. The TRC5 is not supported.

If you're looking for information about what devices are supported on Webex Calling (formerly Spark Call), go here.