Phone Software File
The factory installs a version of the phone software on the phone during manufacturing. But that software
may not be the latest version.
Your Cisco Unified Communications Manager stores the software loads. If the version of software on the
phone isn’t the latest version, the Cisco Unified Communications Manager sends the updated software load
to the phone.
You cannot downgrade the software on phones to an earlier version than what was installed in the factory.
Note
Phone Configuration Files
Configuration files for a phone are stored on an HTTP server and define parameters for connecting to Cisco
Unified Communications Manager (Unified Communications Manager). In general, any time you make a
change in Unified Communications Manager that requires the phone to be reset, a change is automatically
made to the phone configuration file.
Configuration files also contain information about which image load the phone should be running. If this
image load differs from the one currently loaded on a phone, the phone contacts the HTTP server to request
the required load files.
If you configure security-related settings in Cisco Unified CM Administration, the phone configuration file
will contain sensitive information. To ensure the privacy of a configuration file, you must configure it for
encryption. For more information, see the documentation for your particular Unified Communications Manager
release. A phone requests a configuration file whenever it resets and registers with Unified Communications
Manager.
Load the COP Files to Cisco Unified Communications Manager
You must install the Webex Wireless Phone 840 and 860 device enabler QED installer and phone software
Cisco Options Package (COP) files into each Cisco Unified Communications Manager (Unified
Communications Manager) in the cluster.
These COP files are signed with the sha512 checksum. Cisco Unified Communications Manager versions
before version 14 don't automatically include support for sha512.
Note
For the first installation, install the device enabler QED installer file first and then the software file.
For future software updates, there is not always a corresponding device enabler QED installer update. When
a software update is available, check the latest version of the device enabler QED installer file to see whether
you also must update it.
With each new software release, the Cisco apps are also updated in the Play Store. However, if you manage
the phones through an Enterprise Mobility Management (EMM) application, we recommend that you update
the firmware on the phones to minimize any risk of app incompatibility.
Note
Webex Wireless Phone 840 and 860 Administration Guide for Cisco Unified Communications Manager
27
Initial Setup
Phone Software File