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AT&T AUDIX Networking 585-300-903 User Manual

Page 229

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Network Considerations

A-7

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DIAL PLAN:

3000-3999
5000-5999

DIAL PLAN:

4000-4999

DIAL PLAN:

3000-5999

ADDRESS RANGES:

3000-4999
5000-5999

AUDIX

3

AUDIX

2

AUDIX

1

DCS

NODE 3

DCS

NODE 2

DCS

NODE 1

SWITCH

3

SWITCH

2

SWITCH

1

DIAL PLAN:

7000-7999

ADDRESS RANGES:

3000-4999
5000-5999
7000-7999

ADDRESS RANGES:

2000-2999
3000-4999

DIAL PLAN:

2000-4999

Figure A-3. Address Ranges When Dealing with a DCS Environment

Legend:

‘‘Dial Plan’’ indicates the extensions in use at the switch. These are both AUDIX subscriber
extensions and non-subscriber extensions.

‘‘Address Ranges’’ indicates the extensions assigned on the

system : translation :

machine : audix/amis/call delivery

form for the local system.

The purpose of Figure A-3 is to show that the address ranges assigned at AUDIX system 3 should include
the dial plan of the entire DCS environment (Nodes 1 through 3), even though AUDIX system 3 serves
only Node 1. The reason for this is that a caller at Switch 2, after unsuccessfully reaching a ‘‘live’’ person
at Switch 3, cannot transfer out of the AUDIX system to a person at Node 2 or Node 3 unless the
extensions at those nodes appear in the address range(s) along with Node 1’s.

Figure A-3 also shows how multiple ranges and duplicated ranges are used as opposed to using 0000 –
9999 at all systems. Using 0000 – 9999 would require memory allocation for extensions that do not exist.