NEC NEAX NDA-24349 - Manual (Page 38)

Chapter 2 System Architecture
Page 2- 4 NEAX2000 IPS Request For Proposal (RFP) Reference Guide
NDA-24349 Issue 4
SN716 Attendant Console
The SN716 Attendant Console connection is available through one twisted-pair cable when using an
AC adapter. When using the PN-PW00, one twisted-pair cable is required for voice/data and one pair
is required for power from the PW00 to the Console.
Analog/Digital Telephones
The analog/digital telephone connection is available through one twisted-pair cable .
IP Telephones
The IP telephones can communicate with other IP telephones over the LAN, on a peer-to-peer
connection basis. The Main Processor (MP) provides call control with an Ethernet adapter card. Voice
packets are transmitted between IP telephones over the LAN (not through Time Division Switch). Voice
compression of G.729a (8 kbps) and G.723.1 (5.3 kbps/6.3 kbps) is available for these connections.
The IP telephones can communicate with legacy stations and trunks (including H.323 trunks) via an IP-
PAD that converts voice packet data to PCM signals. Call control signals are transmitted to the MP over
the LAN, while voice packets are transmitted via the IP-PAD. The number of IP-PADs depends on the
traffic volume of connections between the IP Enabled D
term and legacy stations and trunks.