REDCOM Multi-Technology Conferencing

Conferencing is a powerful tool  for business, legal, medical, education, emergency response, government, and defense applications.  REDCOM’s Multi-Technology Conferencing gives you the ability to teleconference with a few, or hundreds of people using a combination of IP phones, radios and traditional phones.

Conferencing Capabilities

  • Conference members can use IP phones, traditional TDM phones and radios
  • Radio Push To Talk (PTT) signals can be transmitted through a conference
  • The conference initiator has the option to join the conference
  • Members can join as “listen only” participants
  • The audio of one member can be isolated from other members
  • Conferences can be password protected
  • Members can be assigned a priority status, with highest priority becoming the preferred voice heard
  • Full DSN MLPP support

Conference Types

REDCOM’s Multi-Technology Conferencing technology supports several conferencing styles. Any or all of these styles can be combined into a single conference.

  • Preset: Rapidly establishes a conference with pre-defined members.
  • Meet-Me Type 1 – Station Number: This Meet-Me conference is a conference that is associated with a station number. Any station user, attendant, or dispatch console user can access the Meet-Me conference capability.
  • Meet-Me Type 2 – Dial Code: This Meet-Me conference is accessed by dial codes and can have many attributes, including caller screening.
  • Progressive: A conference controller initiates a progressive conference call by dialing the conference dial code. The conference controller also can enter the conference size.
  • Conference Chaining: Multiple types of conferences are merged together to collectively form a single, larger capacity conference. Bridge elements can be in one geographic location or distributed globally.

Conference Modes

The following modes are available on any conference type:

  • Loudest Party Talks: The dominant audio source is dynamically selected and all other voices and sounds are excluded. The loudest talker will hear silence and all other conferees will hear just the voice of the loudest talker.
  • Additive: This is a traditional phone conference where a conferee hears all voices (except their own) speaking within the conference.
  • Additive/Loudest Talks Conference: This technology selects the loudest voices, a priority status voice, pre-selected group of voices, or a combination of both, as determined by the system administrator. Conferences can be programmed to allow n members of the total members in the conference to speak at one time.
  • For all conference types, when Priority Talker is invoked, the conferences then include the talker’s priority into the selection process.

Secure Conferencing

REDCOM’’s Secure Conference solution, designed for government agencies, high – level corporate networks, legal offices and medical offices,  has been deployed and proven by critical worldwide agencies.

Secure Voice Gateway Applications

The REDCOM Sectéra® Wireline Terminal – Remote (SWT-R) Interface is available on the REDCOM HDX, SLICE and SLICE 2100. Each REDCOM SWT-R Interface connects a REDCOM system to 4 SWT voice encryptors (made by General Dynamics C4 Systems). SWT-R encryptors allow any HDX/SLICE line or trunk port (and using REDCOM TRANSip®, any VoIP port) to conduct secure voice communications with any SWT compatible terminal in the world. SWT encryptors are compatible with STE, STE-R, SWT, GSM/SCIP, and SCIP devices.

Secure Conferencing Applications

Encrypted SWT-compatible voice paths through a SWT-R equipped REDCOM system can employ REDCOM’s Scalable Conferencing capabilities. External SCIP-compatible phones can be switched into a REDCOM system equipped with a Secure Device Module, and then connect to VoIP and Secure Radio technologies. For all-IP networks, additional medium-security conference options are available.

Voice Prompting Capabilities

REDCOM’s SWT-R Interface and the SWT encryptors provide voice prompting and call progress announcements. Dedicated SWT encrypted phone users  may view a display with this information. Stations using shared SWT encryptors receive this information via announcements.

Standard REDCOM Conferencing Features


  • ANI and/or password screening of incoming participants
  • Establish secure enclaves
  • Multiple levels of access security
  • “Number hiding” for secure enclave access trunks
  • Operator Intercept for live challenge of caller
  • Secure access from softphones and smartphones


  • Conference access points can be distributed geographically to reduce backhaul and provide redundancy
  • Conference resources can be shared or reserved
  • Detailed call records
  • Global satellite access via Inmarsat and Iridium® services
  • One touch invocation
  • Technology independent (GSM, Radio, IP & TDM)

Conferee Capabilities

  • Initiate a conference
  • Join an existing conference
  • Be announced into a conference with a tone
  • Leave a conference and re-enter a conference
  • Monitor a conference*
  • Place a conference on hold*
  • Add a member to a conference*
  • Drop a member from the conference*
  • Mute one or more conferees*
  • Remove mute from one or more conferees*
  • Supervision control of conference*
  • Private consultation*
  • Set up a sub-conference*

Capabilities marked with an asterisk (*) are operator-controlled.

Custom Application Development

Put our software developers to work for you. If you have a unique communications requirement, REDCOM can work with you to develop custom conferencing features to meet your specific needs. Contact REDCOM for details.

Link Command System Conference Control Package

REDCOM’s Link Command System (LCS) is a call management system that runs on a standard PC, delivering extensive call control, call handling, directory assistance requests, and call queue management. The LCS provides the operator with an interface for starting, monitoring and controlling conferences. The chart below lists REDCOM Conference Control features enabled by the LCS. Standard features are marked with a green check mark. Optional features are marked with an orange circle.

Feature Description
Check Appearance Customization The layout of the Link Command System console can be fully customized by the end user, allowing each operator to have their own screen layout, system of tabs, buttons and audio alerts.
Check Conference Display Information Special identification of chained and joined conference entries to ease identification of joined or chained conferences. Displays available empty conference entries.
Check Directory Assistance This feature allows the LCS operator to program contacts into a list. The operator can double click on a name to instantly call the contact.
Check Multi-Conference Control A single Link Command System operator can control multiple conferences at once from a single PC.
Check Operator Recall Signals the LCS operator with a visual indication that a conferee is requesting attention. Even a muted party can dial a DTMF digit to signal the operator for a private consultation.
Check Push-to-Talk Allows the operator to key up a radio. There is an option to create a PTT button on the LCS screen.
Optional Add Attendee Control Allows the LCS attendant to select a particular conference and add the caller to the selected conference.
Optional Audio Indication An audio-on indication is generated with any audio input from a conference party. An audio-off indication is generated when there is no audio input from a conference party.
Optional Conference Join Allows the LCS attendant to join conferences together.
Optional Conferee Retrieval Allows the LCS attendant to select a disconnected party from a conference, have the LCS console dial that party, and add the party back into the conference.
Optional Drop Attendee Control Allows the LCS attendant to select a particular conference attendee and drop them from the conference.
Optional Monitor Conferee Allows the LCS attendant to listen to the audio path from the conferee to the conference. A tone can be injected directly into the conference to alert conferees that the audio is being monitored.
Optional Mute Attendee Control Allows the LCS attendant to select a party of the conference, and to change the status of the party from ACTIVE 2-WAY to MUTE (and vice-versa). The attendee will continue to hear the conference audio.
Optional Private 2-Way Consultation with Conferee Allows the LCS attendant to remove an individual from a conference and establish a two-way conversation between the attendant and individual. The operator can later restore the party to the conference.
Optional Segmentation A single REDCOM switch can service multiple conferences. Each operator will only see the conferences which are allocated to them. Permissions are controlled by a system administrator.
Optional Sub-Conferencing (Conference Sidebar) Allows the LCS attendant to select and move individual conferees from one conference to a separate sub-conference. The sub-conference members can be returned to the original conference.
Optional Visibility of Conferees Allows the LCS attendant to see when each member is speaking, who the loudest talker is, and when a conferee is muted.