IP LDK-20 Installation Manual Board Installation
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4.5 VOIM (Voice over Internet Protocol Interface Module) installation
Description
The VOIM can be installed on the basic KSU and provides the Ethernet interface for S/W applications and VoIP
features with optional VoIP daughter board.
The VOIM has the capacity for maximum 8 channels with one(1) VOIU, and VOIU provides four(4) VoIP channels.
Item
Specification
LAN Interface
10 / 100 Base-T Ethernet(IEEE 802.3)
Speed
10 Mbps or 100 Mbps(Auto-Negotiation)
Duplex
Half Duplex or Full Duplex(Auto-Negotiation)
VoIP Protocol
H.323 Revision
3
Voice Compression
G.711/G.726/G729/G.723.1
Voice/Fax Switching
T.38
Echo cancellation
G.165
.
Figure 4.5.1 VOIM