NEC UNIVERGE NEAX 2000 IPS - Manual (Page 267)

Chapter 13 Voice Over IP (VoIP)
UNIVERGE NEAX 2000 IPS Request for Proposal (RFP) Reference Guide Page 13- 25
Issue 6
Remote PIM over IP
Remote PIM over IP targets users who have 1-30 relatively small offices that accommodate
10-30 extensions at the Remote Site. When
U NIVERGE NEAX
IPS DMR or U NIVERGE NEAX
2000 IPS PIM are installed at remote site, and connected to an IPS or IPS DM at main site
over IP network, the Main Site system controls and maintains the Remote PIM operation as
one single system. If a communication failure occurs between the Main Site and Remote Site,
the Remote Site automatically changes over to a survival mode and operates as a stand-alone
system.
U NIVERGE NEAX
IPS DMR: IPS Distributed Model Remote (with CP31-A/C)
U NIVERGE NEAX
2000 IPS: IPS PIMMK (with CP24-A/B/C)
The U NIVERGE NEAX
IPS DMR is designed primarily for distributed IP networking but also
supports traditional analog and digital trunks for connection to the Public Switched Telephone
Network (PSTN). The
U NIVERGE NEAX
IPS DMR supports up to 128 peer-to-peer IP stations
and 56 TDM ports in a single modular chassis. Up to two chassis can be stacked providing
maximum capacity of 112 TDM ports while still supporting as many as 128 peer-to-peer IP
stations.
Note: The MP card at Remote Site has the same system data as the CPU at the Host Site; the Host Site
automatically downloads system data to the Remote Site at the time of setup. In normal operation, Main Site
automatically downloads a copy the system data to Remote Site through the network once a day.
Because the CP31 as a DMR is designed as a Remote PIM CPU, the following options that
are built-in on the CP24 are not available with the CP31:
No built-in Modem
No built-in DAT.
Only one RS Port.
No built-in DK (external/relay key).
No MN Alarm Indication
Network Conditions and Payload
Item Requirement Remarks
Protocol TCP/IP transparent
Maximum
Delay Time
120ms(one way)/240ms(return)Recommended
150ms(one way)/300ms(return) Maximum
Support the quality class A,
B of IP Telephone