Nortel DMS-100 Series Maintenance Manual page 133

Subscriber carrier module-100s

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Table of Contents

Direct inward dial (DID) PBX by hairpin This feature uses the

following items:

special-services channel units in an RCS

a hairpin connection

a DS-1 link from an SMS to a DTC

other piece of telephone equipment

The following DID PBX configuration figure illustrates this feature.

DID PBX configuration example

RCS channel units

(for example, 2DPT/6)

PBX analog trunks

Physical path

Path of voice and signaling data

DMS-100 Family SMS Maintenance Manual XPM10 and up

SMS signaling 3-17

PX digital trunks

Troubleshooting