Manual for Webex Wireless Phone 840 and 860

Manual for Webex Wireless Phone 840 and 860

Brand: Cisco

Category: Networking

Document Type: Manual

Language: EN

Uploaded: Sept. 12, 2025, 4:17 a.m.

Manual Publish Date: 2021-01-08

Warranty Information

Warranty information is set forth in the accompanying product information packet.

  • Webex Wireless Phone 840 and 860 are wireless smartphones providing voice communication over an organization's Wi-Fi network using Cisco Unified Communications Manager and access points.
  • They are app-driven, similar to Android devices, with icons for opening applications.
  • Key features include placing/receiving calls, call hold, transfers, conferences, call forwarding, battery monitoring, button customization, and optional emergency safety features and group broadcasts.
  • System administrators configure and manage these phones.
  • The phones offer various hardware features including touchscreens, cameras, shockproof and vibration-proof design, USB-C interfaces, and different Ingress Protection ratings (IP65 for 840/840S, IP68 for 860/860S).
  • They support multiple languages and have specific hardware buttons and features like a barcode scanner on S models.
  • The home screen provides access to apps, widgets, and navigation controls.

Troubleshooting and error codes

Problem Solution
Unauthorized message appears in the Enter Unity Web Credentials dialog box after the user enters their credentials and selects the Login option. Validate that the:
  • User enters the same Username as the Alias field (including case) on the User's Mailbox in the Cisco Unity Connection voice messaging system.
  • User uses the Web Application password, not the Voicemail pin.
  • Password Settings for the User's Web Application Password do not have the User Must Change Password at Next Sign-In check box selected.
When the user navigates to the Voicemail tab of the Cisco Phone app, a brief toast notification appears, which states Voicemail connection error. Unable to connect along with an error message Voicemail Authentication failed! Unable to connect to voicemail. Please contact your administrator. Also, you know that visual voicemail is not working on other devices at the same site. Validate that the Cisco Unity Connection server's tomcat-trust certificate has been imported into the Cisco Unified Communications Manager's trust store and the Tomcat service has been restarted since the import occurred.
Voicemail connection error. Unable to connect. toast notification appears on the screen when the user navigates to the Voicemail tab of the Cisco Phone app. Visual voicemail is unable to connect to the Cisco Unity Connection server. Investigate potential connectivity issues between the user's phone and the server.
This feature has been disabled by your administrator appears when the user navigates to the Voicemail tab of the Cisco Phone app. Enable visual voicemail from the Phone Configuration page in Cisco Unified Communications Manager. This error appears only if visual voicemail was enabled previously, and then disabled.
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