Alcatel OmniPCX Enterprise Manuel d'utilisateur télécharger pdf (Page 6)

• LIO E/INT-IP/MCV boards (one LAN

interface per board)

• Lost frame interpolation

• Management fully integrated with

management platforms

• Multiple VoIP bundles

• Silence suppression and regeneration (VAD)

• Up to 60 voice channels per board

• Up to 1,500 channels per node

• G.711 voice coding: 64 Kbps

Packet voice network over frame relay

Frame relay is a central element of many

enterprise networks. It’s efﬁcient and cost-

effective, and provides more deterministic

performance than the Internet. The Alcatel

OmniPCX Enterprise provides optimized support

for voice across frame relay networks. The

OmniPCX sends voice across private and public

frame relay networks. This is particularly useful

for interconnecting sites with small to medium

trafﬁc loads.

• LIO B (serial data) provides one serial data

interface per board, supporting X.24 / V.11 or

V.36.

• Interface speed: 64 - 128 Kbps

Characteristics:

• Automatic fax detection

• Using G.729A compression algorithm,

compression rate is 8 Kbps

• Using G.723.1 compression algorithm,

compression rate is 6.4 Kbps

• Data frame fragmentation (reducing delay)

• DTMF Q23 codes interpreted, coded, and

regenerated

• Each LIO B board supports up to four

bundles of compressed channels; each

bundle can go to a separate destination

• End to end compression / decompression

• G3 Fax up to 4.8 Kbps

• Integrated echo cancellation

• Lost frame interpolation

• Mutual help between compression resources

• Silence suppression and regeneration (VAD)

• Six voice channels per PVC

• G.711 voice coding: 64 Kbps

Voice over ATM

Today, many campus networks use ATM as a

backbone technology with many carriers

providing ATM as an interface to a high-speed

wide area network. The OmniPCX Enterprise

supports native ATM connectivity, providing

seamless integration of voice and ABC services

over ATM networks.

Characteristics:

• ATM interface: 155 Mbps

• ATM adaptation layer 1

• VToA Permanent Virtual Circuits: AAL1 CBR

(constant bit rate)

• The ATM interface uses circuit emulation mode

(CES1) unstructured

• The SDH transmit unit implements an ATM user

network interface compliant with the ATM

Forum UNI 3.1 and the ITU-TI.432

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