NEC 2000 IPS manual Service Conditions IP Ccis via IP Trunk cards, IP Trunk Card Specifications

Chapter 13 Voice Over IP (VoIP)

Service Conditions (IP CCIS via IP Trunk cards)

1. Maximum voice channels per IP trunk card depends on the payload period as follows (payload period can be assigned in system programming):

	Payload Period		Maximum Voice Channels per IP Trunk
	10 ms			4
	20 ms			8
	30 ms			16
	40 ms			16
2. Maximum 127 voice channels can be provided per system (point-to-multipoint connection).
3. IP trunk cards must be connected with the intranet via router.
IP Trunk Card Specifications
	Description			Specifications
	QoS signaling			IP Precedence/DiffServ
	Speech encoding/decoding			G.711/G.729a/G.723.1
	Payload period			G.711/G.729a : 20 ms, 30 ms, 40 ms
				G.723.1 : 30 ms (fixed)
	FAX communications protocol			T.30
	FAX mode detection timer			0 to 5 min. (1 min. increment)
	PAD control			Controlled in a node basis
	Tandem connection			IPT to IPT/IPT to ACIS: available (but voice quality may deteriorate)
				IPT to ISDN : available
	IPT connection mode			Fixed Connection Mode or Automatic Disconnect Mode can be
				assigned per IPT trunk or destination node in system programming.
	Dynamic jitter buffer			10 to 600 ms (10 ms increment)
Required Equipment for IP CCIS via IP Trunk cards
Equipment Name		Functional Name				Function
SPN-IPTB-A					IP Trunk Card Accommodates the IP network and
			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.

UNIVERGE NEAX 2000 IPS Request for Proposal (RFP) Reference Guide	Page 13- 17
Issue 6