Profile Updates and Firmware Upgrades
The phone supports secure remote provisioning (configuration) and firmware upgrades. An unprovisioned
phone can receive an encrypted profile targeted for that device. The phone does not require an explicit key
due to a secure first-time provisioning mechanism that uses SSL functionality.
User intervention is not required to either start or complete a profile update, or firmware upgrade, or if
intermediate upgrades are required to reach a future upgrade state from an older release. A profile resync is
only attempted when the phone is idle, because a resync can trigger a software reboot and disconnect a call.
General-purpose parameters manage the provisioning process. Each phone can be configured to periodically
contact a normal provisioning server (NPS). Communication with the NPS does not require the use of a secure
protocol because the updated profile is encrypted by a shared secret key. The NPS can be a standard TFTP,
HTTP, or HTTPS server with client certificates.
The administrator can upgrade, reboot, restart, or resync phones by using the phone web user interface. The
administrator can also perform these tasks by using a SIP notify message.
Configuration profiles are generated by using common, open-source tools that integrate with service provider
provisioning systems.
Allow Profile Updates
Profile updates can be allowed at specified intervals. Updated profiles are sent from a server to the phone by
using TFTP, HTTP, or HTTPS.
You can also configure the parameters in the phone configuration file with XML(cfg.xml) code.
Before you begin
Access the phone administration web page. See Access the Phone Web Interface, on page 104.
Procedure
Step 1 Select Voice > Provisioning.
Step 2 In the Configuration Profile section, choose Yes from the Provision Enable parameter.
You can configure this parameter in the phone configuration XML file (cfg.xml) by entering a string in this
format:
<Provision_Enable ua="na">Yes</Provision_Enable>
Default: Yes
Step 3 Set the parameters as described in the Profile Resync Parameters, on page 48 table.
Step 4 Click Submit All Changes.
Cisco IP Phone 8800 Series Multiplatform Phone Administration Guide for Release 11.3(1) and Later
97
Cisco IP Phone Provisioning
Profile Updates and Firmware Upgrades
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