Polycom 4300T Benutzerhandbuch

 System Diagnostics

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Displays information logged during system boot and normal operation.  

Logging messages may indicate unauthorized attempts to access the 4300T, 

process restart messages, and excessive resource utilization messages.

The 4300T monitors live voice calls and performs objective speech quality 

assessment.  This information enables the network operator to assess voice 

quality for the purposes of SLA tracking or problem isolation. Mean Opinion 

Score (MOS) results for RTP streams in both directions of a VoIP call are 

calculated at call completion.  This information along with the IP addresses of 

the VoIP endpoints supporting the call are logged locally and optionally sent 

to an external syslog server (see Enable Remote System Logging 

 for instructions on enabling logging to a remote syslog server).  

Additionally the 4300T will generate a real-time message for any MOS values 

calculated less than 2.5 (considered poor quality) during an active call.  
Voice call quality information is found locally in the System Logging Messages 

section of the System Information page and a sample output is provided 

below.

The 4300T provides convenient test tools to facilitate problem isolation and 

resolution.  A network operator can use these tools to verify connectivity 

to/from the 4300T as well as trace datapaths to endpoints throughout the 

network.