Avaya 4600 User Manual

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Server Administration
88 4600 Series IP Telephone LAN Administrator Guide
 
The default value for MCPORT is 1719. Administer the switch to use a port within the proper 
range for the specific LAN, and the IP telephone(s) will copy that port. A related parameter is 
PORTAUD, which is the RTP port used by the switch. If no UDP port range is administered on 
the switch, the IP telephone uses an even-numbered port, randomly selected from the interval 
4000 to 10000. 
Network Audio Quality Display on 4600 Series IP Telephones
With the exceptions of the 4601, 4601+, 4606, 4612, 4624, and 4690 IP Telephones, all Series 
4600 IP Telephones are by default administered to allow the end user an opportunity to monitor 
network audio performance while on a call. The user guides for each telephone provide specific 
detail on getting to the appropriate screen, what the end user sees, and what the information 
means. 
For 4610SW/4620/4620SW/4621SW/4622SW/4625SW/4630/4630SW IP Telephones, these 
parameters display in real-time to users on the appropriate screens, while on a call:
Table 5: Parameters in Real-Time
Parameter
Possible Values
Audio Connection 
Present?
Yes if a receive RTP stream was established.
No if a receive RTP stream was not established.
Received Audio 
Coding 
G.711G.726A, or G.729.
Silence Suppression
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.
Packet Loss
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.
Packetization Delay
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.
One-way Network 
Delay
No data or an integer number of milliseconds. The number is one-half 
the value RTCP computes for the round-trip delay. 
Network Jitter 
Compensation Delay
No data or an integer number of milliseconds reporting the average 
delay introduced by the telephone’s jitter buffer.