Listen Technologies LA-449 User Manual

ListenTech-Note

Doc. # LTN0038 Page 1 of 3 Revision: 09-04-18

Adding a Remote Expert to a ListenTALK Tour

Overview:

Oftentimes, group tour applications require the ability to conduct a call with a remote expert;
an example being a museum, factory, or medical facility. An expert can provide additional
information and content making the tour more dynamic or conduct a Q&A session with the
group. The purpose of this tech-note is to explain how to accomplish this task via phone call or
conference app, such as Skype.

Components:

There are four components required for this application:

• ListenTALK Transceivers* – Listen Part # LK-1

• ListenTALK Smartphone Cable – Listen Part #: LA-449

• Local Smartphone –Android/Apple phone or tablet

• Conference App or Phone Call – Skype, Facetime, Hangouts, GoToMeeting, or similar

*This application requires one Leader and at least one SubLeader to be in the tour group.

Setup:

The LA-449 Smartphone Cable is designed to be plug-and-play; however, some settings may
need to be changed for optimal performance. Settings can be adjusted within the internal
menu of the transceiver unit or via the ListenTALK Software Suite.

These settings will only apply to the Leader unit:

• Sidetone – If a standard phone call is used to conduct the remote conference, it is

recommended to set the Sidetone setting to Off. Without this setting disabled, the
remote expert may hear an echo of their own voice. Note, Sidetone is set to Normal by
default.

• Jack Sense – Jack Sense auto-detects when a device is connected or disconnected from

the transceiver unit; the unit will auto power off after 1 minute with no connection
when Jack Sense is enabled. If the Leader unit will not be connected to the LA-449 until
the tour reaches the point of the remote conference, the Jack Sense setting should be
turned Off manually. Note, Jack Sense is set to On by default.

ListenTech-Note

Doc. # LTN0038 Page 2 of 3 Revision: 09-04-18

How It Works:

The tour guide in this application will have two LK-1 ListenTALK Transceivers on their person, one
Leader unit and one SubLeader unit.

• The Leader unit is the central point of all communication and where the smartphone is

connected using the LA-449 Smartphone Cable to call the remote expert. The
smartphone can be carried with the Leader unit, or simply plugged in when the tour
reaches a certain point. Either way, the tour guide must have this Leader unit on them
during the entire tour.

• The SubLeader unit is how the tour guide will communicate with the group and where

the tour guide’s headset will be plugged in. The SubLeader unit has additional privileges
over Participants of the tour group; these privileges allow the tour guide to pair
additional units to join the group and to control Talkback at any time.

See below diagram for an overview of this application.

Local Tour Group

Remote Expert

LA-449

Smartphone Cable

Participants

LK-1 Leader

LK-1 SubLeader

Tour Guide

Figure 1- Overview Diagram