Panasonic KX-NS1000 Installation Manual page 237

Pure ip-pbx
Hide thumbs Also See for KX-NS1000:
Table of Contents

Advertisement

Note that the amount in the table is only a guide. Subscribe to a network that has enough bandwidth. If the
amount of bandwidth required for VoIP communications is larger than what the network can accommodate,
speech quality will be compromised.
Required Bandwidth for Each Channel
The required bandwidth depends on what combination of codecs and packet sending interval is used. Keep
in mind the following points about the type of codec and packet sending interval, in terms of the speech quality:
The speech quality of the codecs varies as follows: G.711 (High), G.729A (Low)
The shorter the packet sending interval, the higher the speech quality.
The higher the speech quality the V-SIPGW16 card provides, the more bandwidth the WAN requires.
Codec
10 ms
G.711
110.4 kbps
G.729A
54.4 kbps
Packet Sending Interval
20 ms
30 ms
87.2 kbps
79.5 kbps
31.2 kbps
23.5 kbps
7.3.4 Bandwidth Requirements
40 ms
50 ms
75.6 kbps
73.3 kbps
19.6 kbps
17.3 kbps
60 ms
71.7 kbps
15.7 kbps
Installation Manual
237

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents