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Call routing -10, Figure 6-6. call routing – Zhone Technologies 600 User Manual

Page 160

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6-10

Server Cards

Model No.

Running Head

Introduction

ACS-PRI/BRI Card

Thus, if local routing is disabled, any call coming into the system on a network side (i.e., local)
D channel will be routed only to a user side D channel based on the called number. Even if the
called number matches, such a call will never be routed to an HSU port or a network side D
channel when local routing is disabled.

If local routing is enabled, then any call coming in on a D channel will be routed to the first
matching phone number, regardless of whether or not the match is for a local device.

Figure 6-6 shows a system connected to two carriers (A and B), two ISDN PBXs, two video
codecs (#1 and #2) and a LAN router. The examples that follow help explain the call routing
parameters.

Figure 6-6. Call Routing

In the example shown in Figure 6-6, the following call routings will occur:

An incoming call to 700-737-2345 from either carrier will be routed to HSU port #1.

Any outgoing call from any HSU port will be routed to the D channel specified in the call
profile including D channels #3 and #4 to the PBXs.

A call to 510-623-1574 from the PBX will be routed to carrier B.

A call to 800-444-2400 from either carrier will be routed to PBX #2.

A call from either PBX to 700-737-5511 will be routed to HSU #3 if local routing is
enabled, but routed to Carrier A if local routing is disabled.

Carrier A

ISDN Switch

Carrier B

ISDN Switch

700-xxx-xxxx

415-940-77xx

ISDN PBX #1

700-737-2345

700-737-4567

700-737-5511

Video Codec #1

Video Codec #2

LAN Router

800-444-2xxx

xxx-xxx-xxxx

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ISDN PBX #2