Network Audio Quality Display On 1600 Series Ip Deskphones; Ip Address Lists And Station Number Portability - Avaya 1600 Series Administrator's Manual

Network Requirements
Note:
Priority 0 is a higher priority than Priority 1.
Note:

Network Audio Quality Display on 1600 Series IP Deskphones

All 1600 Series IP Deskphones give the user an opportunity to monitor network audio performance
while on a call. For more information, see the deskphone user guide.
While on a call, the deskphones display network audio quality parameters in real-time, as shown in
Table 4:
Table 4: Parameters in Real-Time
Parameter
Received Audio Coding
Packet Loss
Packetization Delay
One-way Network Delay
Network Jitter
Compensation Delay
The implication for LAN administration depends on the values the user reports and the specific nature
of your LAN, like topology, loading, and QoS administration. This information gives the user an idea of
how network conditions affect the audio quality of the current call. Avaya assumes you have more
detailed tools available for LAN troubleshooting.

IP Address Lists and Station Number Portability

The 1600 Series IP Deskphones provide the capability to specify IP address lists. On startup or a
reboot, the deskphone attempts to establish communication with these various network elements in
turn. The deskphone starts with the first address on the respective list. If the communication is denied
or times out, the deskphone proceeds to the next address on the appropriate list and tries that one. The
deskphone does not report failure unless all the addresses on a given list fail, thereby improving the
reliability of IP telephony.
20 1600 Series IP Deskphone Administrator Guide
Possible Values
G.711, G.711u, G.711a, G.726, G.729A, or G.729B.
"No data" or a 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 potential 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 jitter buffer of the deskphone.