NEC NEAX 2000 IPS Reference Manual page 284

Chapter 13 Voice Over IP (VoIP)
Bandwidth Requirement
Established
Voice Calls
Control
6
Voice 31.8/37.8 Kbps
Control
8
Voice 42.4/50.4 Kbps
Control
12
Voice 63.6/75.6 Kbps
Control
16
Voice 84.8/100.8 Kbps
Control
24
Voice 127.2/151.2 Kbps
Control
32
Voice 169.6/201.6 Kbps
Control
48
Voice 254.4/302.4 Kbps
Control
64
Voice 339.2/403.2 Kbps
Control
72
Voice 381.6/453.6 Kbps
Control
96
Voice 508.8/604.8 Kbps
Note: This information is an estimation based on an established call. Slightly Higher Control values will occur
at time of call origination and termination.
Base values
Originating from a station: 9.6 Kbps/Call (estimated)
Terminating to a station: 5.76 Kbps /Call (estimated)
Originating to C.O: 11.5 Kbps/Call (estimated)
Terminating from C.O: 5.76 Kbps/Call (estimated)
Keep Alive to Remote Site: 0.032Kbps (estimated)
Other control packets for Remote Site: 4Kbps (estimated)
G.723.1 voice: 5.3Kbps (one-way)
G.729a voice: 8Kbps (one-way)
G.711 voice: 64Kbps (one-way)
The above base values are primarily used for call setup with the exception of keep alive; 0.032Kbps with no voice
traffic. Connections between IP PAD are half duplex, established call utilization is G.711 voice: 64Kbps, G.723.1
voice: 5.3/6.3Kbps, or G729a voice: 8Kbps. Peer-to-Peer IP station calls are full duplex, compression can be
specified by location numbers in system data. Peer-to Peer IP station calls even though full duplex will utilize
one-way for Bi-directional networks such as T1. Peer-to Peer IP station calls over Asymmetrical networks such as
ADSL may realize higher bandwidth utilization, compression can be specified by location numbers in system data.
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With G7.23.1
With G729a ( 8k)
(5.3k/6.3k)
Compression
4.1 Kbps
4.3 Kbps
4.3 Kbps
4.5 Kbps
4.5 Kbps
4.9 Kbps
4.9 Kbps
5.8 Kbps
5.8 Kbps
6.7 Kbps
Without Compression
Compression
4.1 Kbps
48 Kbps
4.3 Kbps
64 Kbps
4.3 Kbps
96 Kbps
4.5 Kbps
128 Kbps
4.5 Kbps
192 Kbps
4.9 Kbps
256 Kbps
4.9 Kbps
384 Kbps
5.8 Kbps
512 Kbps
5.8 Kbps
576 Kbps
6.7 Kbps
768 Kbps
NEAX 2000 IPS Request for Proposal (RFP) Reference Guide
(G.711)
4.1 Kbps
432 Kbps
4.3 Kbps
576 Kbps
4.3 Kbps
864 Kbps
4.5 Kbps
1152 Kbps
4.5 Kbps
1728 Kbps
4.9 Kbps
2304 Kbps
4.9 Kbps
3456 Kbps
5.8 Kbps
4608 Kbps
5.8Kbps
5184 Kbps
6.7 Kbps
6912 Kbps
NDA-24349, Issue 4