NEC 2000 IPS manual Advantages, Service Conditions

Chapter 13 Voice Over IP (VoIP)

Advantages

The system regards the terminals accommodated in both Host Site and Remote Site as the extensions in the same office. Feature transparency is superior to CCIS.

The Digital Remote PIM cannot accommodate some AP cards; Remote PIM over IP can accommodate AP cards such as ISDN PRI and T1.

This feature can reduce the bandwidth used on the WAN that is connected to CO lines at Remote Site, rather than DtermIP at remote locations.

Since all Remote PIM over IP sites are treated as extensions in the same office, software and applications only have to be implemented in the host site. This provides centralized use of application for example distributing ACD agents in the DMR locations. CCIS requires each location to have separate software and applications.

CCIS over IP can be combined with Remote PIM over IP to accommodate larger network configurations. Up to 255 host sites can be connected via CCIS, each host site can have up to 15 Remote PIM over IP locations.

User Mobility/User Continuance allows a user to relocate from one site to another then login using the same station number and password. User Mobility/User Continuance is only available to the 2000 IPS in a Remote PIM network using a DtermIP terminal.

Service Conditions

1.It is a requirement that the same software version be loaded in the Main Site and All Remote Sites.

2.Host site can be an IPS, IPS DM or IPS Retro system. Main plus Remote PIM over IP is available in any combination of the following CPUs.

Main Site: CP24-A/B/C, CP27-A, CP26-A, CP28-A

Remote Site: CP31-A/B/C, CP24-A/B/C, CP27-A, CP26-A, CP28-A

Note: The CP27/CP28 can not be used as Backup CPU system in a Remote PIM.

3.Software and Key FD for the whole system must be loaded at the Main Site. No software or key’s can be loaded into the Remote Site.

4.All system data changes for the whole system must be performed in the Main Site. No system data changes can be done in the Remote Site.

5.A TCP/IP network is required between the Main Site and Remote Site. A closed and bandwidth guaranteed network is preferable, such as IP-VPN (layer 3 VPN) or wide area Ethernet service (layer 2 VPN). Permissible Delay with in these types of networks is 100ms one way (120ms Max) or 200ms both way (240ms Max).

6.The CPU card at Remote Site has the same system data as the CPU at Main Site; the Host Site automatically downloads its system data to the Remote Site at the time of setup. In normal operation, Host Site automatically copies the system data to Remote Site through the network once a day.

UNIVERGE NEAX 2000 IPS Request for Proposal (RFP) Reference Guide	Page 13- 27
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