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RTX 725x Headsets
system guide
Technical Reference Document
Version 2.0
© May-2023 RTX A/S, Denmark

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Summary of Contents for RTX 725 Series

  • Page 1 RTX 725x Headsets system guide Technical Reference Document Version 2.0 © May-2023 RTX A/S, Denmark...
  • Page 2 Disclaimer The contents of this document are provided about RTX products. RTX makes no representations with respect to completeness or accuracy of the contents of this publication and reserves the right to make changes to product descriptions, usage, etc., at any time without notice. No license, whether express, implied, to any intellectual property rights are granted by this publication.
  • Page 3: Table Of Contents

    Contents Contents ....................................3 About This Document..............................6 Audience ................................6 When should I read this guide? .......................... 6 Content summary ............................... 6 Limitations ................................7 Abbreviations ..............................7 References/Related Documentation ........................7 Document History ............................... 7 What is new? ..............................7 Documentation Feedback...........................
  • Page 4 Factory Reset ..............................21 How to connect headset and base station......................... 22 Bluetooth registration ............................23 Connect RTX725x headset to PC/Laptop using RTX3741 Dongle ..............23 7.2.1 Deregister RTX725x Headset from RTX3741 Dongle ................... 23 7.3 Hybrid functionality ..............................23 RTX725x Operations ..............................
  • Page 5 Soft Client Support............................38 Appendix A (RTX725x Features) ..........................39 Appendix B (RTX745x features) ..........................41 13.1.1 Base features ............................43 Register devices on RTX VoIP system........................44 14.1 Register RTX745x headset base........................44 14.2 Register RTX725x headsets..........................46 15.
  • Page 6: About This Document

    Provides a descriptive list of the supported features CHAPTER 13 Appendix B (RTX745x features) CHAPTER 14 Register devices on RTX VoIP Presents a step-by-step guide on how to register the system RTX745x and RTX725x to the VoIP system CHAPTER 15...
  • Page 7: Limitations

    We always strive to produce the best and we also value your comments and suggestions about our documentation. If you have any comments about this guide, please enter them through the Feedback link on the RTX website. We will use your feedback to improve the documentation. Page 7 of 52...
  • Page 8: Package Overview

    2 Package overview Prior to opening, examine the shipping package for evidence of physical damage. If there is proof of mishandling prior to opening, you must report it to the relevant support center of the regional representative or operator. 2.1 Content The headsets are sold both as a standalone product and together with the base in combined packaging.
  • Page 9: System Overview

    3 System overview The Wireless headset system consists of three main products. RTX745x DECT Base Station, RTX725x DECT Headset(s) (refer to 11. Appendix A for different models) and RTX3741 DECT Dongle. The high-end headsets support DECT and BT technology to establish connection with other devices. They are used with the RTX745x DECT base and Desk Phone / PC / Laptop/ mobile phones.
  • Page 10: Handover To Voip Multicell Systems

    3.2 Handover to VoIP multicell systems The RTX725x headset and RTX745x base can be integrated together into VoIP multicell and dual cell systems. The headset base will register on behalf of itself and the headset. The two registrations are independent but will be linked logically as one unit on the VoIP system.
  • Page 11 NOTE: RTX will provide USB API. The customer is responsible for implementing it on relevant phones. It is also possible to connect a Desk phone to an existing RTX DECT system using the RTX3741 Dongle (Fig.5) Fig.5 Connect Desk phone to DECT network.
  • Page 12: Rtx725X Wireless Dect Headset Overview

    4 RTX725x wireless DECT headset overview The RTX725x series are wireless DECT+BT headsets. As mentioned before, the headset connects to the DECT base, which act as a charger for the headset, via the DECT wireless technology. It can also connect via Bluetooth to supported devices, such as mobile phones and Bluetooth compatible desk phones.
  • Page 13: Headsets Overview

    4.2 Headsets overview The following section aims to provide an overview of the headsets, including the available buttons and LED’s. All models have an LED on the boom arm indicating if the user is busy (Fig.6). Fig.6 Headset boom arm LED Headset can be adjusted on both sides of the headband for a perfect fit (Fig.7).
  • Page 14 The headset has 7 different control buttons (Fig.8). Fig.8 Buttons and user interface. The images below represent the styling of the headsets from the RTX725x series (Fig.9). The product is available in 3 different colors – grey, black and white. The cushions of the headsets are removable and replaceable to improve the comfort of the users.
  • Page 15: Physical Buttons

    4.3 Physical buttons The headset is operated using the buttons on the earcup with boom arm. The ANC button is located on the opposite earcup, as ANC is not available for Mono headsets (Fig.8) The following table represents the functions of the buttons seen on the figures above INPUT FUNCTIONS POWER SLIDER...
  • Page 16: Battery

    Registration, In Blue, red Alternating progress Registration, Success Green Blink 3 times BLUETOOTH REGISTRATION Registration, Failed Blink 3 times Registration, In Blue, red Alternating progress Registration, Success Green Blink 3 times DECT REGISTRATION Registration, Failed Blink 3 times No battery* Cyan Blink Fully charged*...
  • Page 17 The RTX725x can be charged in 2 ways. One of the options is placing the headset in the cradle of the base, which displays the charging status. Another way to charge the device can be with the use of a USB cable, where the status will be shown on the boom-arm LED.
  • Page 18: Rtx745X Base Station Overview

    5 RTX745x base station overview The RTX745x device is an EHS/USB wireless base station which provides USB connectivity to PC/laptop/desktop phone and DECT connectivity to RTX725x headsets. It is designed as a Plug & Play solution, meaning that no additional driver installations are needed. The figure below (Fig.11) illustrates the high-level description of the communication possibilities of the device.
  • Page 19: Spare Battery Charging

    Further details on the functionality of the keys can be seen on the table below: INPUT FUNCTIONALITY HOOK OFF Answer call (short press) Swap between calls (short press) Swap between lines (double press) Hold/Retrieve call (short press) Hold active call and accept incoming call (long press) HOOK ON End call Reject call...
  • Page 20: Rtx3741 Dect Dongle Overview

    6 RTX3741 DECT dongle overview The RTX3741 is a USB type A dongle with slide switch that can establish a wireless connection with the RTX headsets from the RTX725x series. The dongle supports dual mode, meaning that it can be used either as a Fixed part (FP), or Portable part (PP).
  • Page 21: Led Patterns

    It is possible to verify the current setting of the RTX3741 dongle in the PC Tool; Headset (Portable Part) Enables DECT access for a USB desktop phone on the RTX VoIP System; Slider is placed at the top; It is possible to verify the current setting of the RTX3741 dongle in the PC Tool;...
  • Page 22: How To Connect Headset And Base Station

    7 How to connect headset and base station The following steps serve as a guideline for the process of registering the RTX725x headsets to the RTX745x base. Registration mode is enabled by inserting the headset into the base cradle (Fig.15). The headset can be registered as both primary and secondary.
  • Page 23: Bluetooth Registration

    7.1 Bluetooth registration The headset is registered to a Bluetooth device by holding the BT button for 2 seconds (Fig.16). This will enable pairing mode for the headset which then allows it to be discovered by other Bluetooth devices. The RTX725x can store up to 4 paired BT devices’...
  • Page 24: Rtx725X Operations

    8 RTX725x Operations The RTX725x headset is equipped with 5 buttons (6 in the models with ANC available), that helps the user to operate the device. A short description of the buttons has been provided in 4.3. Physical buttons. In this chapter user can learn more specific details about the use of the button controls.
  • Page 25: Microsoft Teams Integration

    "Call accepted. Call on hold" and put the first call on hold. If there is a secondary headset registered to the same base/dongle and participating in the first call, it will follow with the primary headset to the second incoming call. User can swap the two calls (from primary headset) by pressing the Multi -Function Button, which will be followed by the voice prompt “Call swapped”.
  • Page 26: Rtx745X User Interface

    9 RTX745x user interface As mentioned in 5. RTX745x base station overview, the RTX745x base supports a 2.4-inch 240x320 TFT display which has a user-friendly interface (UI). The UI is designed to be operated at an arms distance, meaning that the status bar is large and visible (Fig.17). Fig.17 Status bar The idle screen is represented by 2 UI panels (Fig.17).
  • Page 27: Voip

    Headset not registered or out or range, no signal 9.1.2 VoIP This icon is visible only if the RTX745x is registered to the VoIP system. The table below presents the available status icons when connected to the VoIP system. ICON DESCRIPTION The system is registered to a VoIP system but not locked...
  • Page 28: Other Icons

    The battery is charged at 50 – 69 % The battery is charged at 21 – 49 % Low battery (level <= 20%). Icon is blinking when under 3%. 9.1.5 Other icons The following table lists other icons displayed in the status bar panel. ICON DESCRIPTION Desktop phone connection status icon:...
  • Page 29: Dect Registration Status Interface

    9.3 DECT registration status interface The following screenshots represent the interface during a DECT registration (Fig.18). Fig.18 DECT status registration 9.4 Settings Menu Upon pressing the Scroll Wheel Key, the user gets access to the Settings Menu. That menu allows the user to change configuration settings like language, audio settings and the audio prompts, as well as handle registrations and reset the device.
  • Page 30: General

    Fig.20 Multiple choices in the Settings Menu The units in the Settings Menu available are explained in detail in the following sections. 9.4.1 General The settings that this menu allows to configure are shown in the table below. MENU ITEM DEFAULT VALUE DESCRIPTION Base language...
  • Page 31: Audio

    Fig.21 General settings 9.4.2 Audio This menu lets the user control the audio settings of both the base and the headset. Fig.22 Audio Settings DESCRIPTION MENU ITEM DEFAULT VALUE Shows and allows user to change the current value of the ANC on the headset. Note: Can also be changed from the ANC button on some headset models.
  • Page 32: Audio Prompt

    Scroll Wheel Key again to confirm its choice after. 9.4.6 VoIP System From this menu item user can register the base to a VoIP system. Refer to 13. Register devices on RTX VoIP system for more detail on VoIP registration.
  • Page 33: Reset User Setting

    9.4.7 Reset User Setting This menu item allows the user to clear all configurations to their initial values. When chosen the user can either confirm and reset all user settings or with the help of the Scroll Wheel Key - cancel. If there is a headset registered to the base, it will send the command further to the headset and reset all user settings for the headset as well.
  • Page 34: Active Call

    Fig.25 Incoming call 9.7 Active call When a call is active, the base displays the active call, and the audio path is connected between the far-end party and RTX725x headset (Fig.26). It is not possible to have more than one active call on a single line at the same time.
  • Page 35: Multiple Line

    Fig.28 Multiple calls 9.10 Multiple line There is more than one call existing on different lines (Fig.29). Fig.29 Multiple line 9.11 Active & Inactive line When a line is active, the base displays it in a green-colored field and enables the audio path to be connected via that line (Figure 23).
  • Page 36: Line Swapping

    9.13 Line swapping In the case of two calls being established in two different lines, one of them is being the active call in the active line. To make the line swapping simpler, active line is swapped automatically depending on call activities change.
  • Page 37: Rtx745X Feature Description

    10 RTX745x feature description This section aims to introduce you to the available features on the RTX745x base. Some of the features will be briefly described through the sections below, whereas the main highlights will be presented via a table with function descriptions (please refer to 12.
  • Page 38: Rtx3741 Dect Dongle Features

    The headset registers back as primary on its own dongle by short pressing the DECT button when idle (not in call). 11.2 Soft Client Support The RTX3741 dongle combined with one of the four RTX headsets supports the audio and USB API of the following applications: •...
  • Page 39: Appendix A (Rtx725X Features)

    12 Appendix A (RTX725x Features) The features of the above-mentioned headsets are summarized and listed in the table below: Main headset RTX7251 Mono RTX7252 Stereo RTX7254 Stereo ANC features FOLD FLAT Yes, 2-way DESIGN EAR CUP EAR PADS Fabric and PU Leather MATERIAL EAR PADS Detachable...
  • Page 40 VOICE PROMPT Configurable via PC Tool LANGUAGE ENGLISH Included CALL CONTROL VOL+ Scroll wheel up VOL- Scroll wheel down Answer/end call, etc DECT CONFERENCE 4 users CALLS (SUPERVISOR) BLUETOOTH Yes, BT4.2 ADAPTIVE POWER CONTROL (DECT) HANDOVER TO VOIP MULTICELL SYSTEMS FIRMWARE Via PC Tool UPDATE...
  • Page 41: Appendix B (Rtx745X Features)

    13 Appendix B (RTX745x features) The table below presents a summary of the features available in the headsets that are controlled by the base station. INPUT FUNCTIONS DECT FREQUENCY BANDS: 1880 – 1895 MHz (Taiwan) 1880 – 1900 MHz (EMEA) 1910 –...
  • Page 42 22 dBm (Chile, Australia) SENSITIVITY -92 dBm ANTENNA 2 for fast antenna diversity RANGE (MAX) 200m outdoor SECURITY Class C STANDARD DECT INTERFACE HANDOVER TO VOIP MULTICELL SYSTEMS SOFTWARE UPDATE DOWNLOADABLE AIR-INTERFACE BLUETOOTH NO. OF PAIRINGS BT VERSION 4.2 Classic FREQUENCY 2401 MHz –...
  • Page 43: Base Features

    AUTOMATIC CONNECT An already paired Bluetooth device will automatically connect to the headset. OTHERS HAC COMPLIANT 13.1.1 Base features REQUIREMENTS DESCRIPTIONS DISPLAY SIZE 2.4” 240x320 TFT BUTTONS Scroll wheel (with an embedded key) Four keys HARDWARE FEATURES SPEAKER HEADSET INTERFACE USB C CHARGING TERMINALS USB C...
  • Page 44: Register Devices On Rtx Voip System

    14.1 Register RTX745x headset base. Step 1 Enter the Management page of an RTX VoIP base station and enable the Headset base setting. By doing so, a new menu on the left-handed navigation panel will be added (Headset base) Step 2 Navigate to the Headset base page and select the Add headset base option.
  • Page 45 PARAMETER DEFAULT DESCRIPTION VALUES NAME Empty The name displayed on the headset base overview page IPEI FFFFFFFFFF The IPEI of the headset base. In general, this must not be changed manually. If IPEI is left at FFFFFFFFFF, any headset base can register at this index. Else, only the headset base with the specified IPEI number can register to the VoIP system TERMINAL...
  • Page 46: Register Rtx725X Headsets

    The registration of the RTX725x headsets to the VoIP system is done via the Extensions page. The procedure is the same as registering an RTX handset. Therefore, please refer to the VoIP System guide and follow the steps for enabling registration mode for the VoIP bases. As soon as you have enabled it, follow the steps below to register the headset.
  • Page 47: 15. Appendix C: Ehs And Dhsg Api

    15 15. Appendix C: EHS and DHSG API 15.1 EHS Interface 15.1.1 EHS The EHS connector is compatible with the EA40 standard but is designed so that it may support other standards in future. The pins are as follow: Pin no. Direction DESCRIPTION In/out Bidirectional IO/SPI DI.
  • Page 48: Ehs Standards

    MIC- MIC+ MIC- SPK- SPK+ SPK+ SPK+ SPK- SPK- MIC- SPK- MIC- 15.2 EHS Standards 15.2.1 DHSG This section only gives a very brief overview of the DHSG standard. DHSG uses an 8-pin RJ45 connector with pinouts as follow: Pin no. Description Data Rx (Headset to phone) MIC- MIC+...
  • Page 49: Appendix D: Call Control Action And Call State Table Between Bt And Dect

    16 Appendix D: Call Control Action and Call State Table between BT and DECT Call State Call control action DECT BT key DECT Active BT Active Multi-Function key Multi-Function key Short Short Long Double Short Long Double press press press press press press...
  • Page 50 HOOK-OFF RINGING Toggle DECT: DECT: DECT: DECT: DECT: AND HOLD link Hold & End & Reject, Hold & Reject, BT/DECT accept accept accept RINGING Reject Reject Accept Accept IDLE HOOK_OFF BT: End BT: Hold RINGING HOOK_OFF Toggle DECT: DECT: DECT: BT: Hold DECT: link...
  • Page 51 HOOK-OFF HOLD Toggle DECT: DECT: DECT: DECT: DECT: link Hold & End & Reject Hold & Retrieve Reject RINGING BT/DECT accept accept accept HOOK-OFF HOLD Toggle DECT: DECT: BT: End AND HOLD link Swap Call Retrieve BT/DECT HOOK-OFF HOLD Toggle DECT: DECT: DECT:...
  • Page 52 HOLD HOOK-OFF Toggle Retrieve link Hold & Reject Hold & End & Reject RINGING BT/DECT accept accept accept HOLD AND HOOK-OFF Toggle DECT: DECT: DECT: DECT: RINGING link Accept, Reject Accept, End & Reject RINGING BT/DECT accept Hold & Reject Hold &...

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