Cisco CTS-500 Configuration Manual page 86

Troubleshooting Your Configuration
Table 3-1 Troubleshooting the Cisco TelePresence Configuration
Problem
CTS does not register with
Cisco Unified CM:
From the Cisco Unified
•
CM device page, the
CTS status shows
unregistered or
unknown.
From the codec Web user
•
interface (UI), CTS
status shows unknown or
inaccessible for
Cisco Unified CM.
CTS un-registers from time
to time.
Cisco Unified Communications Manager Configuration Guide for the Cisco TelePresence System
3-6
Chapter 3
Possible Cause
Profile or Provisioning Issues
• CTS profile is not provisioned properly
in Cisco Unified CM.
Directory Number Issues
• Directory Number (DN) is not
configured.
TFTP Issues
Cisco Unified CM or TFTP service
•
issue.
TFTP port 6970 is blocked so that the
•
CTS cannot download the "device config
xml" file from Cisco Unified CM TFTP
server.
XML Issues
XML configuration file is suspected to
•
be corrupted on the Cisco Unified CM
database.
Hostname Issues
Cannot resolve hostname of
•
Cisco Unified CM.
SIP Issues
The system experiences a SIP
•
registration timeout.
Network Issues
Intermittent network issues could cause
•
packets to be dropped.
Verifying and Troubleshooting the Cisco TelePresence System Configuration
Possible Solutions
Log onto Cisco Unified CM, make sure
•
that the CTS profile and the directory
number (DN) are created and configured
properly.
• Completely delete from Cisco Unified CM
the CTS and the phone, including its
associated DN, then add them back to
Cisco Unified CM.
Even if you make minor changes on the
Tip
Cisco Unified CM CTS Device page,
(in the Description field, for example),
remember to click Save and restart the
CTS.
• Make sure Cisco Unified CM and TFTP
service is running. Restart services if
necessary.
Make sure there is no firewall or device
•
between the CTS and Cisco Unified CM
that blocks the 6970 port.
If you are using the Cisco Unified CM
hostname as the TFTP server on the CTS, make
sure that the hostname can be resolved by the
domain name system (DNS).
1. Confirm that Cisco Unified CM is
receiving SIP messages and whether the
system is responding.
Collect a packet capture if necessary to
2.
submit to Cisco technical response for
further review.
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