Cisco OL-21851-01 - Manual (Page 27)

5-27
Cisco Unified Communications Manager Configuration Guide for the Cisco TelePresence System
OL-21851-01
Chapter 5 Configuring and Managing the Cisco Unified IP Phone
Verifying and Troubleshooting IP Phone Configuration
Managing Phone Reset and Codec Connectivity
The following sections contain information about managing the following system components:
• Information About Phone Reset, page 5-28
• Resetting the Cisco Unified IP Phone 7970 Series, page 5-28
• Synchronizing a Phone, page 5-28
• Resetting the Cisco Unified IP Phone 7970 Series Factory Image, page 5-29
MIDlet fails to initialize
properly, showing the
following message:
“Configuration error.”
Authentication Issues
The MIDlet does not find Authentication
Server URL or it does not recognize its
format.
Supported Character Issues
Non-English characters are used on phone
device profile.
1. Properly configure the Authentication
Server URL for the phone
2. Click Save.
3. Reset the phone.
Tip Use only English characters.
See Managing Cisco Unified IP Phones for
information about configuring external URLs.
See also the “Managing Phone Reset and
Codec Connectivity” section on page 5-27 for
reset information.
Cisco Unified IP Phone 7970
Series goes dead during
CTS endpoint or MIDlet
upgrade. Phone Firmware Issues
Occasionally, an unexpected phone power
cycle can occur during a CTS endpoint or
MIDlet version upgrade. During
CTS endpoint upgrades, the CTS briefly
powers off the phone then brings it back up
when upgrade is complete. But if the phone
power cycle is occurring at the same time, the
phone's firmware image can be damaged and
the phone will not power back on.
To avoid this problem, unplug the phone before
upgrading the CTS endpoint. When upgrade is
complete, plug the phone back in and upgrade
the MIDlet.
If you encounter a phone that will not power
back on after a CTS endpoint or MIDlet
upgrade, perform a phone factory reset to
restore the firmware image. See
Resetting the
Cisco Unified IP Phone 7970 Series Factory
Image
.
On some CTS 500
installations, the
Cisco Unified IP Phone
rejects a direct firmware
upgrade. During installation, Cisco Unified
Communications Manager will
automatically upgrade the firmware on
Cisco Unified IP Phone 7970 Series to the
minimum version required. But if the
firmware on the IP phone is outdated, the
phone may reject the direct firmware
upgrade. Upgrade the IP Phone 7970 Series to an
intermediate unsigned firmware version before
upgrading to the final firmware required by the
endpoint. See
Adding a Cisco TelePresence
Image to the Cisco Unified Communications
Manager Server
for download instructions. See
also the Cisco Unified Communications
Operating System Administration Guide for
complete software upgrade instructions.
Table 5-11 Troubleshooting the Cisco TelePresence Configuration (continued)
Problem Possible Cause Possible Solutions