NEC NEAX 2000 IPS - Manual (Page 24)

NEAX 2000 IPS Configuration Guide
Page 14 NDA-24347, Issue 1
System Outline Chapter 2 System Configuration
CCIS Connection For Dterm IP-to-Dterm IP connection via CCIS (Peer-to-Peer connection), the voice
data is transmitted and received directly between Dterm IP telephones via Intranet
(CCIS via IP).
For Dterm IP-to-Legacy terminal connection via CCIS, the IP-PAD card and VCT
card are required to transmit and receive the voice data. These cards are used to
control and convert the voice data.
The MP card manages the control signals in both types of connections.
Figure 2-7 System Outline of CCIS Connection
Legacy Terminal
LC/DLC
TDSW
MP
LAN
ROUTER ROUTER
LAN
MP
IP-PAD IP-PAD
INTERNET/
INTRANAT
(CCIS via IP)
TDSW
LC/DLC
Control
Signal
Voice Data
Dterm IP Dterm IP
Dterm IP
Legacy Terminal
Voice Data
(Peer-to-Peer Connection)