Panasonic KX-NS1000 Installation Manual page 334

8.4.1 One-look Network
Number of Simultaneous Calls
The number of simultaneous calls is proportional to number of extensions registered to the PBX, as shown in
the chart below. The proportion is approximately 0.25 when the number of registered extensions is 100. For
more information about the number of simultaneous calls, ask your local Panasonic dealer.
100
90
80
70
60
50
40
30
20
10
0
10 50
Number of Registered
Extensions
Number of Simultaneous
Calls
Required Bandwidth per Call for VoIP Communication
The required bandwidth for VoIP communication is determined by the codec used and the packet sending
interval.
Codec
G.711/G.722
G.729A
G.722 is only available for calls between KX-NT300 series IP-PTs, KX-NT500 series IP-PTs, and some SIP phones that support this
*1
codec during peer-to-peer communication. For details, refer to "15.1.5 Peer-to-Peer (P2P) Connection" in the Feature Manual.
Required Bandwidth per Call for Signaling
In a One-look network, a certain amount of bandwidth is required for the master unit to handle all the calls in
the network. The required bandwidth depends on the type of IP telephone.
Phone Type
IP Telephones (except SIP phones)
SIP Phone
Example:
The following examples show different cases of assessing bandwidth for a One-look network.
334 Installation Manual
100 150
Number of Registered Extensions
10 50 100
6 16
Packet Sending Interval
20 ms 30 ms
80 kbps 74.7 kbps
24 kbps 18.7 kbps
Required Bandwidth
200
150 200
26 35 44
40 ms
72 kbps
16.0 kbps
43.0 kbps
16.0 kbps
250 300
250 300
53 61
60 ms
69.4 kbps
13.4 kbps
Document Version 2016-03