Cisco Cisco Unified MeetingPlace for IBM Lotus Notes 빠른 설정 가이드
Troubleshooting Telephone Issues for Cisco Unified MeetingPlace
How to Resolve Problems with Call Connections
9
Both Dial-In and Dial-Out Calls Fail
Problem
Both dial-in and dial-out calls fail.
Solution
See the
.
Solution
Make sure that the Media Server is correctly configured.
Solution
Make sure that the autonegotiation and duplex settings are correctly configured between the
local switch port and the Cisco Unified MeetingPlace Application Server. .
To change the duplex settings on the Application Server, log into the CLI as the
user, and use the
command to change the duplex settings.
Solution
Make sure that the Cisco Unified MeetingPlace Application Server is connected to a single
switch port instead of a multiple-device Ethernet bus. Cisco Unified MeetingPlace works best when
micro-segmented to use a single switch port. Sharing a bus with other devices can cause excessive
collisions, which reduce bandwidth and cause unpredictable bandwidth availability.
micro-segmented to use a single switch port. Sharing a bus with other devices can cause excessive
collisions, which reduce bandwidth and cause unpredictable bandwidth availability.
Solution
Check for and reconfigure any firewalls between the phone and Cisco Unified MeetingPlace.
Possible Cause
Network congestion. You can take a trace of network traffic as close as possible to
the Application Server eth0 port.
Solution
Reduce traffic in the local LAN by adding more switches and distributing the network devices
between them.
Solution
Reduce the number of devices (and thus the traffic) on the local LAN by adding more routers
to create more (but smaller) LANs. There might also be unused ports on the local router, in which case
more routers are not needed.
more routers are not needed.
Solution
Change network device settings to reduce unnecessary traffic. For example, add access lists to
the local router to filter out irrelevant traffic.
Possible Cause
Bad frames were received.
Some phones provide network error statistics about how many bad frames have been received. See
if the particular phone has these statistics. If so, see if the phone has registered receiving a large
number of bad frames.
if the particular phone has these statistics. If so, see if the phone has registered receiving a large
number of bad frames.
Solution
Check the configuration of the device that routes calls to Cisco Unified MeetingPlace. In
Cisco Unified Communications Manager, make sure that the route patterns and trunks are configured
correctly.
correctly.
Related Topics
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Established Calls Get Dropped
Problem
Successfully connected calls between users and Cisco Unified MeetingPlace get dropped.
Solution
See the
.