NEC 2400 ipx Manuale Utente

1.

To send/receive voice information, each node will use an IPTRK circuit card. At this time, the IPTRK
circuit cards in the self-node and its connected node(s) can be either in 1-to-1 ratio, respectively, or in 1-
to-n (n=2 or more) relations (referred to as Point-to-Multipoint connection). 

2.

Be sure to use a router for connections between IP network and IPTRK circuit card.

3.

A maximum of two IPTRK circuit cards per UNIT are allowed. Accordingly, a total of 16 IPTRK circuit
cards can be accommodated per IMG.

4.

Only voice and FAX (G3) information can be sent/received via IPTRK circuit card.

5.

A call cannot be established/routed across multiple IP networks. See the following figure.

6.

When multiple IPTRK circuit cards are used for node-to-node connection and all the lines on an IPTRK
are busy, alternate routes are available (see the figure below). However, if a router cannot be used, all the
related IPTRK routes are made unavailable.

IPTRK

IPTRK

Node A

Routing: NG

Routing: OK

IPTRK

IPTRK

Node B

IP Network #1

IP Network #2

IPTRK

IPTRK

Node A

IPTRK

IPTRK

Node B

Intranet

IPTRK

Node A

IPTRK

IPTRK

Node B

Alternate Routing:  OK

  

  

As shown, when multiple IPTRK circuit cards exist, alternate routes are available: 

Alternate Routing:  OK

Symbols:
IPTRK:

IP Trunk

Intranet

Intranet

BUSY

BUSY

IPTRK