NEC NEAX NDA-24349 - Manual (Page 285)

Chapter 13 Voice Over IP (VoIP)
NEAX 2000 IPS Request for Proposal (RFP) Reference Guide Page 13- 27
NDA-24349, Issue 4
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 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 D
term IP 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.
Service Conditions
1. Host site can be NEAX 2000 IPS, NEAX IPS DM, or NEAX 2000 IVS Retro system. Remote
PIM over IP is available in any combination of the following CPUs.
Main Site: CP24-A/B, CP27-A, CP26-A, CP28-A
Remote Site: CP31-A, CP24-A/B, CP27-A, CP26-A, CP28-A
2. Software and Key FD for the whole system must be loaded at the Host Site. No software or
key’s can be loaded into the Remote Site.
3. All system data changes for the whole system must be performed in the Host Site. No system
data changes can be done in the Remote Site.
4. 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.
5. Remote Site automatically operates by itself (survival mode) when Keep Alive signal (sent every
30 sec) between the Host Site and Remote Sits is interrupted. When Keep Alive is interrupted
the Remote Site is reset to change the operation from normal mode to survival mode.
6. Remote Site in survival mode checks at 30 seconds intervals if the communications to Main Site
are possible. When Keep Alive is detected, the Remote Site automatically is reset to change the
operation from survival mode to normal mode.
7. When unstable conditions occur in the network, the Remote Site can be manually set to
survivable mode (override automatic) until stability in the network is established. This prevents
the Remote Site from resetting normal mode to survivable mode etc.