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Respondr

Turn every smartphone into a powerful walkie-talkie.

With the Respondr push-to-talk app, your team talks from smartphones and PCs, even without physical radios. You can start for free in minutes. If you want to connect existing radio networks (analog VHF and UHF, DMR, TETRA or NEXEDGE), you can do so with a dedicated server.

Respondr Mobile on an iPhone, on the Harbour Ops channel: the user holds down the PTT button, which turns green during the transmission, then receives a transmission from Sara Engel. The user goes back to the channel list, where Jonas Weber is talking, and reopens Harbour Ops.
Getting started

You can talk in two ways.

Intercom channels

They run on the Respondr server and are not connected to any radio network: your team talks from the app and from the browser console.

They work on

  • iPhone and Android
  • PoC radios
  • Web browser
  • Windows and Linux
On an Android phone the Terminal Security intercom channel is open while the user transmits: the full-screen PTT button is green, with the Connected badge above it.

Radio channels

They are connected to your physical radio networks through gateways and need a dedicated server, on premise or in the cloud.

Supported technologies

  • Analog VHF and UHF
  • DMR Tier I, II and III
  • TETRA
  • NEXEDGE

Compatible gateways and base stations

  • FunkTronic
  • Radio Data
  • JPS
  • JVC Kenwood
  • Radio Activity
The dispatch console

A single console for every channel.

Every channel, every network and every unit is managed from the browser or the Windows desktop client. The standalone control-room console manages the radio channels connected to its gateways.

Built for dispatch

Respondr provides what a control room needs.

All dispatcher features

Channels & talkgroups

You can organize every network into the channels your operators actually use, with priority and permissions set for each channel.
The Harbour Ops channel card in the Respondr console while Sara Engel talks: the red receive arrow is lit and the PTT key shows her name.

Voice recorder

Every transmission is archived and can be replayed, ready for audits.
00:42
Ch 12 · Unit 7 · 09:41:22

Radio rooms

You can group channels, users and gateways by site or by operation.
Airport NorthHarbor OpsPlant 2

Users & roles

Permissions go down to the individual channel, with the Admin and Operator roles.
AS
Alice Smith
Operator · MFA on
ACTIVE

History & messages

Each channel has its own timeline of calls, messages and events.
09:41Unit 7 → Ch 12 · voice, 12 s
09:39Dispatch → All · “Shift change 10:00”
The history shows Emma Kovac’s man-down alarm with the GPS position and the messages the control room uses to handle it. A recording is playing back with its transcript, and the transmissions of the Apron VHF and VHF Marine 16 radio channels appear below.
Voice recorder

Every communication is recorded and archived.

Respondr records the traffic on every channel and keeps it in a single searchable archive. You can filter by date, channel or operator, replay the audio from the browser and export what an audit requires.

ARCHIVEEvery call on every channel is stored on the server
SEARCHYou can filter by date, channel, sender or recipient
EXPORTYou can download a selection for review or handover
Mobile app

The push-to-talk app.

With the Respondr app your team talks on intercom channels, with no radios and no gateway: voice travels encrypted over Wi-Fi, LTE and 5G, and you can connect Bluetooth or wired PTT buttons.

An iPhone has the Harbour Ops channel open while the user transmits: the PTT square fills most of the screen and is green, and the transmit arrow is lit beside the Connected badge.
Console series

Dispatch hardware for the control room.

Respondr consoles run a hardened Linux system and work silently, with no fans. All of them have programmable PTT keys: 3 on the Mini, 12 on the Pro and 24 on the Max, plus a broadcast PTT key on the Pro and the Max. All of them have a gooseneck microphone and a speaker, and you can add an optional handset module to any of them.

Respondr Max
15.6" touchscreen
Respondr Pro
10.4" touchscreen
Respondr Mini
3.5" touchscreen
The Respondr console series: Max, Pro and Mini with gooseneck microphones, handsets and programmable PTT keys
Network patching

You can join two networks with one click.

You can patch an analog, DMR or TETRA channel to another channel, or to a Respondr intercom channel: the two networks communicate as if they were one. A DMR patrol hears the TETRA team directly, with no radio operator acting as a go-between.

ANALOGDMRAnalog VHF radios talk with DMR radios without changing any equipment.
DMRTETRATwo agencies, one on DMR and one on TETRA, talk on the same channel during an incident.
RADIOAPPPeople who use the Respondr app on a smartphone talk with people who use a radio.
On the Port tab a banner at the top reports 2 patched channels, VHF Marine 12 and Harbour Ops. Sara Engel is talking on Harbour Ops and her voice is relayed onto VHF Marine 12; beside them the VHF Marine 16 and TETRA Ops 1 channels stay idle.
A marine VHF channel and an intercom channel patched together in the dispatcher.
Network bridging

Your radios don’t change. Everything else does.

Radio gateways connect your existing DMR, TETRA and analog infrastructure to Respondr, without replacing your fleet and without disruption.

ANALOGVHF / UHF base stations & repeaters
DMRTier I/II conventional & Tier III trunked
TETRATMO & DMO networks
NEXEDGENXDN conventional & trunked
The Respondr gateways screen lists six gateways with IP address, type and status: two analog VHF gateways, a TETRA gateway, a DMR base station and the Intercom gateway are online, while a backup marine VHF gateway is offline for maintenance.
Radio integration

Respondr is compatible with your radio systems.

Gateways from radio manufacturers connect Respondr to the base stations and repeaters you already own.

FunkTronic
FunkTronic
FT636B · FT638
Analog · aeronautical and maritime VHF · DMR · TETRA
Radio Data
Radio Data
BS2500
Analog · DMR Tier II/III
JPS
JPS
RSP-Z2 · ACU-Z1 · STR-Z3
RoIP
JVC Kenwood
JVC Kenwood
NXR series
Analog · DMR · NEXEDGE
Radio Activity
Radio Activity
Kairos · RA
Analog · DMR Tier II/III
System architecture

Built to stay connected, from the gateway up.

Respondr Core, radio gateways and clients form a single dispatch chain, deployed in the cloud in the AWS EU region, on premise or in hybrid mode, with redundant gateway links and automatic reconnection.

Fig. 01: System architecture
Respondr system architecture
Security & compliance

Mission-critical means audit-ready.

You can choose the cloud in the AWS EU region, on premise or a hybrid setup: the security stays the same everywhere.

NIS2 and IEC 62443
TLS 1.3AES-256MFASSO OIDCRBACAUDIT LOG

You can start today, for free.

You can start today on the free plan, or book a 30-minute live demo.

Push-to-Talk App for Teams and Radio Networks | Respondr