Table 2-44 Minimum Bandwidth Requirements - NEC Univerge SV8100 Features And Specifications Manual

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SIP IP Stations use the PZ-( )IPLA/IPLB. The IPLA/IPLB controls and interprets RTP messaging from
the SIP IP Phone to the UNIVERGE SV8100 CD-CP00-US.
The IPLA/IPLB supports only those codecs that are considered to provide toll-quality equivalent speech
path. The following voice compression methods are supported for the IP Station SIP feature:
G.711
-Law – Highest Bandwidth
G.722 – Wideband
G.729 – Mid-Range Bandwidth
For the minimum bandwidth requirements for each voice call refer to
Requirements on page
signaling).
Transmit
Codec
Data Rate
G.711
90Kbps
-Law
G.722
64Kbps
G.729
34Kbps
The PZ-( )IPLA/IPLB contains a regular TCP/RTP/IP stack that can handle real time media. The
PZ-( )IPLA/IPLB daughter board is an end-point on the IP network from the network administration
perspective.
The CD-CP00-US uses SIP Protocol to provide telephony services between remote stations
through the IP Network. This is an IETF/ITU standards-based protocol.
Speech-connection audio quality depends greatly on the available bandwidth between the stations
in the data network. Because Internet is an uncontrolled data network compared to an Intranet,
using this application in Intranet WAN environment with known (or controlled and assured) Quality
of Service (QoS) is highly recommended.
The PZ-32IPLA requires two IP addresses, the PZ-64IPLA requires four IP addresses and the
PZ-128IPLA requires eight IP addresses. When a PZ-( )IPLB is installed only two IP Address are
required.
An on-board RJ-45 connector provides a WAN/LAN connection. Voice and signaling data to/from
the IP Stations are converted into IP Frames and transmitted through the Data Communication IP
Network.
2 - 808
2-808. This includes all the overhead of VoIP communication, including

Table 2-44 Minimum Bandwidth Requirements

Receive
Data Rate
90Kbps
64Kbps
34Kbps
Time
Packetization
Between
Delay
Packets
20ms
1.5ms
20ms
1ms
20ms
15.0ms
UNIVERGE SV8100
Table 2-44 Minimum Bandwidth
Default Jitter
Buffer Delay
2 datagrams
(40ms)
2 datagrams
(40ms)
2 datagrams
(40ms)
IP Single Line Telephone (SIP)
Theoretical
Maximum
MOS
4.4
4.5
4.07

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