9-11
Cisco Unified IP Conference Station 7937G Administration Guide for Cisco Unified Communications Manager 6.0
OL-11560-01 Rev. B0
Chapter 9 Troubleshooting and Maintenance
Resetting or Restoring the Conference Station
Resetting or Restoring the Conference Station
There are two methods for resetting or restoring the conference station:
•
Performing a Basic Reset, page 9-11
•
Performing a Factory Reset, page 9-12
Performing a Basic Reset
Performing a basic reset of a conference station provides a way to recover if the conference station
experiences an error. A basic reset resets or restores various configuration and security settings.
Table 9-2
describes the ways to perform a basic reset. You can reset a conference station with any of
these operations any time after the conference station has started up. Choose the operation that is
appropriate for your situation.
Poor voice quality when calling
digital cell conference stations using
the G.729 codec (protocol)
Caution
Using a cell, mobile, or
GSM conference station,
or two-way radio in close
proximity to a Cisco
Unified IP Conference
Station 7937G might
cause interference. For
more information, refer to
the manufacturer's
documentation of the
interfering device.
In Cisco Unified Communications Manager, you can configure
the network to use the G.729 protocol (the default is G.711).
When using G.729, calls between a Cisco Unified IP
Conference Station 7937G and a digital cellular conference
station will have poor voice quality. Use G.729 only when
absolutely necessary.
For more information, refer to the Cisco Unified
Communications Manager application online help.
Prolonged broadcast storms cause
conference stations to reset, or be
unable to make or answer a call
A prolonged Layer 2 broadcast storm (lasting several minutes)
on the voice VLAN may cause conference stations to reset, lose
an active call, or be unable to initiate or answer a call.
Conference stations may not come up until a broadcast storm
ends.
Sound sample mismatch between the
conference station and another
device
The RxSize and the TxSize statistics show the size of the voice
packets that are being used in a conversation between this
conference station and the other device. The values of these
statistics should match.
See the
“Call Statistics Screen” section on page 7-4
for
information about displaying these statistics.
Table 9-1
Cisco Unified IP Conference Station 7937G Troubleshooting (continued)
Summary
Explanation
