NEC 2000 IPS manual Peer-to-Peer Connections, Voice Compression

Chapter 14 Common Channel Inter-Office Signaling (CCIS)

IP CCIS

Peer-to-Peer Connections

Peer-to-peer connections over CCIS Networking via IP are available when the distant systems are 2000 IPS or 2400 IPX supporting peer-to-peer connections. The built-in IP trunks (CCH) on the MP card are assigned with the Virtual Application Processors (AP), and can support up to 127 trunks per system. One Virtual AP can support up to 64 trunks, and up to two Virtual APs can be assigned per system.

The 8 IPLA IP PAD is required for connections between legacy stations/trunks, IP terminals and legacy stations/trunks over the CCIS networking via IP. The IP-PAD converts voice packet data to PCM signals, and one IP-PAD can provide 8 PCM channels or one 8 IPLA plus one 24 IPLA can provide 32 PCM channels. The number of IP-PADs depends on the traffic volume of those connections, and up to eight 8 IPLA IP PADs with 24 IPLA daughter boards can be accommodated per system, thus providing 256 PCM channels in total. Up to two IP-PADs can be controlled by the MP without FP cards, and additional IP-PADs can be controlled by the FP cards (two IP-PADs per FP card).

Note: Legacy stations/trunks means the ones connected to the Time Division Switch (TDSW). Examples of legacy station/trunk cards are LC, DLC, COT, PRT, CCT, DTI, etc

Voice Compression

Voice compression is available for CCIS networking via IP to/from legacy stations/trunks.

The following type of voice compression is available:

G.711 (64Kbps)

G.729a (8Kbps)

G.723.1 (5.3Kbps/6.3Kbps)

Voice compression can be assigned on a call basis or terminal basis, by system programming.

The 8 IPLA IP-PAD and the 24 IPLA daughter board both have built-in VCT capability to provide voice compression which is required for G.729a and G.723.1.

Service Conditions

Intranet must be used for a CCIS network via IP. (Internet is not supported.) Maximum number of nodes in the CCIS network via IP is 255.

All CCIS features are available in the CCIS networking via IP.

When T1 timeout of IAI is occurred, an outgoing CCIS call can be routed over alternate trunk route. This alternate routing can be allowed or denied on a trunk route basis by system programming.

Note: The alternate routing is not available for tandem calls.

UNIVERGE NEAX 2000 IPS Request For Proposal (RFP) Reference Guide	Page 14-5
Issue 6