Introduction

The Call Stacker is a microprocessor based audio

recording and announcement system. The Call Stacker is used in conjunction with a paging system to provide buffered announcement play to the paging system.

NOTE: Associated equipment would need

to be powered by an

uninterrupted power supply.

Figure 1-1. Call Stacker Unit

The Call Stacker features 5 Input Station (recording) channels, a single Page Output channel and 3 minutes of recording time.

Up to 5 announcements can be recorded simultaneously, virtually eliminating frustrating delays encountered when accessing the paging system. The recorded announcements are queued in order so the first announcement recorded that has hung up, plays first, followed by the second announcement, etc.

The Call Stacker allows users to verify their announcements before they play to the paging system. If a user is not content with their recorded announcement, they can re-record it repeatedly until they are satisfied.

The Call Stacker's Page Output channel interfaces to the paging system's control unit. Once an announcement is recorded, the Call Stacker plays the announcement over the Page Output channel to the paging system. While the recorded announcement is playing, the Page Output channel provides a contact closure to the paging system.

Once the complete recorded announcement plays to the paging system, it is erased from the Call Stacker, freeing up the recording time for new announcements.

The Call Stacker can be configured to record and play back paging zone selection signals. Between 2 and 4 DTMF digits can be entered prior to recording an announcement which, upon output, precede the recorded announcement and select the paging system's paging zone.

The Call Stacker is equipped with battery backup which allows it to operate for up to two hours, from a fully charged battery, if a power failure occurs.

1-2Overview

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Lucent Technologies LULCST manual Introduction, Call Stacker Unit

LULCST specifications

Lucent Technologies, once a vital player in the telecommunications and networking landscape, has seen its impact resonate even after its merger with Alcatel in 2006, forming Alcatel-Lucent. Renowned for its innovative technologies and services, Lucent Technologies was instrumental in developing the infrastructure for modern telecommunications networks.

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