# Dialogic® NaturalAccess™ Digital Trunk Monitoring API Developer's Manual

This manual describes the Digital Trunk Monitoring (DTM) API. The DTM API enables NaturalAccess applications to monitor for alarms on digital trunks and to gather performance statistics.

This document is intended for developers of telephony and voice applications who are using NaturalAccess. This document defines telephony terms where applicable, but assumes that you are familiar with telephony concepts and the C programming language.

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