NEC 2000 IPS manual IP Trunk Specifications, Required Equipment for H.323

Chapter 13 Voice Over IP (VoIP)

H.323 IP Trunk Specifications

Description		Specifications
QoS signaling		IP Precedence/DiffServ
		(assigned on an IP trunk basis)
Speech encoding/decoding		G.711/G.729a/G.723.1
Payload size		G.711/G.729a : 20 ms, 30 ms, 40 ms
		G.723.1 : 30 ms (fixed)
Call model	Gatekeeper Routed/Direct
H.323 procedure	Normal Connect/Fast Connect
Supplementary service (defined in H.450)	Not available
Registration on Gatekeeper	Static registration
DHCP server	Not supported
FAX communications	Not available
PAD control	Controlled in a node basis
Echo canceller	Controlled in a node basis
		IPT to IPT/IPT to ACIS
		: available (but voice quality may deteriorate)
Tandem connection		IPT to CCIS : available
		IPT to ISDN : available
		IPT to analog C.O. : available
		IPT to MFC : not available
IPT connection mode	Point to Multipoint
Dynamic jitter buffer		10 to 600 ms (10 ms increment)

Required Equipment for H.323

Equipment Name	Functional Name	Function
		IP Trunk Card Accommodates the IP network and
SPN-IPTB-A	IPT	transmits/receives compressed voice or signals over IP
PN-IPT		network. 10 BASE-T/100 BASE-TX twisted pair cable is
		connected directly to this card.
SPN-4VCTI-A		4-channel CODEC Card for IP Trunk (max of four per IPTB)
		Voice compression protocols:
W/Cable	VCT
		G723.1, G729A, G711, FAX (14.4 kbps),DTMF signals
		Used together with PN-IPTB card.

Page 13- 20	UNIVERGE NEAX 2000 IPS Request for Proposal (RFP) Reference Guide
	Issue 6