Avaya 4600 Series Administrator's Manual page 88

Server Administration
Table 5: Parameters in Real-Time
Parameter
Audio Connection
Present?
Received Audio
Coding
Silence Suppression
Packet Loss
Packetization Delay
One-way Network
Delay
Network Jitter
Compensation Delay
For 4602/4602SW/4602SW+ IP Telephones, the Network Audio Quality Screen gives the user a
qualitative assessment of the current overall audio quality. This assessment is based on
separate evaluations of:
the Packet Loss, and
●
the total Network Delay, which is the sum of Packetization Delay, One-way Network Delay,
●
and Network Jitter Compensation Delay, and
consideration of the codec in use.
●
This information's implication for LAN administration depends, of course, on the values the user
reports and the specific nature of your LAN, like topology, loading, QoS administration, etc. This
information's major use is to give the user an idea of how network conditions affect the current
call's audio quality. It is assumed you have more detailed tools available for troubleshooting the
LAN.
88 4600 Series IP Telephone LAN Administrator Guide
Possible Values
Yes if a receive RTP stream was established.
No if a receive RTP stream was not established.
G.711, G.726A, or G.729.
Yes if the telephone knows the far-end has silence suppression
Enabled.
No if the telephone knows the far-end has silence suppression
Disabled, or the telephone does not know either way.
No data or a decimal percentage. Late and out-of-sequence packets
are counted as lost if they are discarded. Packets are not counted as
lost until a subsequent packet is received and the loss confirmed by
the RTP sequence number.
No data or an integer number of milliseconds. The number reflects the
amount of delay in received audio packets, and includes any
look-ahead delay associated with the codec.
No data or an integer number of milliseconds. The number is one-half
the value RTCP computes for the round-trip delay.
No data or an integer number of milliseconds reporting the average
delay introduced by the telephone's jitter buffer.