RTX725x High-End Headset User Guide
- June 5, 2024
- RTX
Table of Contents
WIRELESS WISDOM
High-End Headset Guide for RTX725x
Installation & Configuration
Network Deployment
Operation & Management
Trademarks
RTX and the combinations of its logo thereof are trademarks of RTX A/S,
Denmark.
Other product names used in this publication are for identification purposes
and maybe the trademarks of their respective companies.
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
Confidentiality
This document should be regarded as confidential, unauthorized copying is not allowed
© Apr-2020 RTX A/S, Denmark, All rights reserved http://www.rtx.dk
About This Document
This document describes the configuration, management, operation, and maintenance of the RTX725x headset series which are part of the range of the DECT system. For customer-specific modes, please refer to specific customer agreements.
Audience
This guide is intended for everyday users. Furthermore, network administrators, IT support, and anyone who wishes to gain knowledge on the fundamental features of the RTX725x headset series can also benefit from this material.
When Should I Read This Guide
Read this guide before you install the devices and before setting up the DECT connection.
This manual will enable you to set up components in your network to communicate with each other and deploy a fully functional system.
What’s Inside This Guide
We summarize the contents of this document in the table below:
WHERE IS IT? | CONTENT | PURPOSE |
---|---|---|
CHAPTER 2 | Package overview | Presents the package content and handling |
CHAPTER 3 | System design | Gives an overview of how RTX725x communicates in the |
system
CHAPTER 4| About the device| Provides information on the device specifications
and hardware
CHAPTER 5| Features overview| Introduces the supported features on the headset
CHAPTER 6| Regulatory compliances| Presents the adherence to the laws and
regulations
CHAPTER 7
(APPENDIX)| DECT cradle registration| Illustrates the steps behind the process
What’s Not in This guide
Since the RTX725x series covers 3 different headsets, one of them (RTX7251)
will not be covered in detail in this document. However, in general, it
follows the same specification as the RTX7252. More details about the
different headsets can be seen at the beginning of the document.
Furthermore, the paper is not intended as a comprehensive reference to details
and specific steps on how to configure other vendor-specific
components/devices. For such a reference to vendor-specific devices, please
contact the respective vendor for documentation.
Abbreviations
For this document, the following abbreviations hold:
DECT: Digital Enhanced Cordless Telecommunications
MWI: Message Waiting Indicator
PCBA: PCB Assembled
MFB: Multi-Function Button
BT: Bluetooth
References/Related Documentation
PC tool
Base guide
Document History
REVISION | AUTHOR | ISSUE DATE | COMMENTS |
---|---|---|---|
1 | DKO | 07.05.2020 | First release |
What is new
What new features have been added?
VERSION | FEATURE |
---|---|
V1.0 | First release |
Documentation Feedback
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.
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.
Content
Make sure all relevant components are available in the package before proceeding to the next step. In principle, every shipped headset unit package/box contains the following items:
- 1x headset
- 1x base station (charger)
- 1x PSU fixed
- 1x USB C cable
- 1x 600mAH Li-polymer battery
- 1x 1-page A5 double side B/W print
Customer-specific changes may occur.
Damage inspection
The following steps are recommended to be followed for damage inspection:
- Examine all relevant components for damage
- Make a “defective on arrival – DOA” report or RMA to the operator. Do not move the shipping carton until it has been examined by the operator. The operator/regional representative will initiate the necessary procedure to process this RMA. They will guide the network administrator on how to return the damaged package if necessary.
- If no damage is found, then unwrap all the components and dispose of empty package/carton(s) in accordance with country-specific environmental regulations.
System design
The high-end headsets support the DECT and BT technology to establish connections with other devices. They are used with the RTX7451 DECT base and Desk Phone / PC / Laptop/ mobile phones. The selected microphone is balanced together with the headset filters to reduce the background noise to provide an ultimate understandable and clear speech. On the other hand, the receivers are balanced to the receiver housing and cushion, so the headset will provide the user with an excellent stereo experience.
The figure below (Fig.1) illustrates the high-level description of the system. It provides a basic understanding of the environment in which the device needs to interact. Both communication possibilities of the RTX725x are presented in the drawing below.
DECT Registration
The headset is registered to the base (RTX7451) by mounting the headset in the cradle (Fig.2). The registration status can be seen on the base display and a voice prompt can be activated via the PC tool to inform the end-user. The headset can also register to the RTX374x DECT dongle by placing both headset and dongle in registration mode. On the headset, this is done by holding the DECT button for 2 seconds. For further details on the registration process, please refer to Appendix.
Handover to VoIP multicell systems
The RTX725x headset and RTX7451 base together can integrate 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. The purpose of this
integration is to hand over the user’s calls to the VoIP system for the user
to be flexible in terms of location.
Bluetooth registration
The headset is registered to a Bluetooth device by holding the BT button for 2
seconds. 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’ information and remain connected to 2 of them at the same time. In
case of reaching the limit and pairing a new device after the 4 existing ones,
the oldest device information will be overwritten by the new agent.
Major mobile platforms are supported, such as iOS and Android.
About the device
The RTX725x series are wireless DECT+BT headsets. As mentioned before, the headset connects to the DECT base, which acts 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.
A Busy-light indicator on the headband is used to indicate that the user is busy. The headset also features Environmental Noise Cancellation (ENC) to suppress unwanted environmental noise for the microphone input and Active Noise Cancellation (ANC) to suppress the noise toward the user. The headset offers DSP-assisted echo canceling. The length of the headband is adjustable to suit the head shape of different users and the tilting angle of the boom can be adjusted to fit the position of the mouth of different people.
The DECT base/charger connects to the PC/laptop. It can access Skype for Business and a defined range of soft call clients from external vendors, as well as a defined range of desk phones via the EHS interface. Call control can be managed via the base, attached desk phones, soft call clients on the PC, or via the buttons on the left earcup of the headset. A conferencing feature allows up to 4 headsets to connect to the same base – users may be added/removed from the conferencing call on the fly.
The primary application of the RTX725x is within call centers and office environments allowing the user to access the internet/VoIP calls and music playback via the PC/BT.
Type of RTX725x headsets
The headset auto-configures the DECT setup when connecting to the base, thus no country-specific variants exist. As mentioned earlier, the RTX725x series covers 3 different headsets:
Model | Product | Country Variant |
---|---|---|
RTX7251 | DECT Mono high-end Headset | World wide |
(Taiwan, EMEA, Brazil & Uruguay, LATAM, Argentina, Chile, USA, Canada)
RTX7252| DECT Stereo High-end Headset| World wide
(Taiwan, EMEA, Brazil & Uruguay, LATAM, Argentina, Chile, USA, Canada)
RTX7254| DECT Stereo High-end Headset ANC| World wide
(Taiwan, EMEA, Brazil & Uruguay, LATAM, Argentina, Chile, USA, Canada)
Features of the RTX725x series
The features of the above-mentioned headsets are summarized and listed in the table below:
Main headset features| RTX7251 Mono| RTX7252 Stereo|
RTX7254 Stereo ANC
---|---|---|---
Fold-flat design| Yes, 2-way
Earcup| | |
Earpads material| Fabric and PU Leather
Earpads attachment| Detachable
Over the ear| No| Yes| Yes
On-ear| Yes| Yes| Yes
Earcup movement| 2-axis
Flexible boom| Bendable
Boom movement| 270° rotation
Headband material| Plastic and silicone
Headband rachet| 30mm±2mm
Ratchet marking indication (on the head side)| No
Busy light| Integrated on boom arm multi-color LED
Proximity sensor (Auto Hook off)| Yes
Noise cancellation|
ENC| Yes – DSP assisted
ANC| No| No| Yes – DSP assisted
Echo Cancelling| Yes – DSP assisted
No. of microphones| 2| 2| 6
No. of receivers| 1| 2| 2
No. of buttons| 5| 6| 6
Scroll wheel for
volume control| Yes
Support for Voice Prompts| Yes
Voice prompt
language| Configurable via PC Tool
English| Included
Call control|
Vol+| Scroll wheel up
Vol-| Scroll wheel down
MFB| Answer/end call, etc
DECT| Yes
Conference calls
(supervisor)| 4 users
Bluetooth| Yes, BT4.2
Adaptive Power Control (DECT)| Yes
Handover to VoIP multicell systems| Yes
Firmware update support| Via PC Tool
Call status LED| Integrated on boom arm multi-color LED
Narrowband Audio| G726, BV16
Wideband Audio| CELT, G.722, BV32
Super wideband| Yes
Acoustic shock protection| Yes
UCB C Connector| Yes
Headsets overview
The following section aims to give an overview of the headsets and the available buttons. The following drawings illustrate the dimensions of the RTX725x series headsets.
The images below represent the styling of all 3 headsets from the RTX725x series. By default, the color is grey, and the devices have removable ear cushions.
Ear cushions
The cushions of the headsets are removable and replaceable. There are two
types of ear cushions – on-ear and over-the-ear (Fig.7 Ear cushions).
The only headset that supports the two types is the RTX7254.
A sensor in the headset detects which type of cushion is used and adapts the
audio tuning accordingly in order to get the optimal noise reduction. The
other two devices (RTX7251 and RTX7252) only support the on-ear cushion
solution.
Physical buttons
The headset is operated using the buttons on the earcup with the boom arm. The ANC button is located on the opposite earcup as ANC is not available for Mono headsets.
The following table represents the functions of the buttons seen in the figures above
Input | Functions |
---|---|
Power slider | Power the headset on and off |
Scroll wheel with an integrated key | Increase volume |
Decrease volume
Play/Pause music
Skip to the next track
Multi-Function Button| Answer call
End call
Reject call
Trigger AI voice assistant
Toggle busy
Mute key| Toggle mute
Announce battery level
DECT key| Enter DECT pairing mode
Reset settings
BT key| Toggle Bluetooth
Enter Bluetooth pairing mode
ANC key| Toggle ANC
LED overview
The headset has a single tricolor LED on the tip of the boom arm, which is a combination of 3 LEDs – red, green, and blue. All visual indications are disabled if “eco mode” is enabled.
LED patterns
The LED supports 3 different kinds of patterns. The definitions of each
pattern can be seen in the table below:
LED pattern | Definition |
---|---|
Blink | ON-OFF |
Breathing | One color that slowly becomes brighter until it reaches full |
brightness and then dimmers until fully dimmed. It is a repeated cycle.
Alternating| Alternating between two colors
LED indication
The table below presents the LED indication depending on the status of the
headset.
Function | Status | LED color | Pattern |
---|---|---|---|
System | Reset setting started | Purple | Blink 3 times |
Bluetooth registration | Registration, In progress | Blue, red | Alternating |
Registration, Success | Green | Blink 3 times | |
Registration, Failed | Red | Blink 3 times | |
DECT registration | Registration, In progress | Blue, red | Alternating |
DECT registration | Registration, Success | Green | Blink 3 times |
Registration, Failed | Red | Blink 3 times | |
Battery status | No battery | Cyan | Blink |
Fully charged | Green | ON | |
Charging | Green | Breathing | |
Low | Red | Breathing | |
Busy mode | Busy enabled or call active | Red | ON |
Battery
The headsets use a 600mAH Li-polymer battery, which is easily replaceable after removing the battery lid, as illustrated in the image below.
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. For more details about the battery LED
indications, please refer to the previous
section 4.4.2 LED indication. The battery performance can be seen in the
summary table of features in section 5.5.
Summary.
Features overview
This section aims to introduce you to the available features of the headset series RTX725x. Some of the features will be briefly described in the sections below, whereas the main highlights will be presented via a table with function descriptions.
Eco-mode
RTX725x headsets support ECO mode which increases the talk time to 12 hours. This is done by limiting some of the features, such as power consumption of the LED indication and audio codec selection. This means that the BV16 narrowband codec is used during ECO mode and the LED is dimmed or turned off to save power.
Auto answer/mute
The RTX725x series uses a proximity sensor to detect when the user is wearing or removing the headset. This means that the sensor is used to trigger two events:
- The auto-answer of an incoming call when the user places the headset on the head
- Auto mute/unmute a call when the user removes/places back the headset on the head
These two settings can be managed in the “Device settings” of the PC setup
tool software. The user should bear in mind that even if these settings are
enabled, the user’s actions will dominate. This means, for example, if the
user enables the auto-mute feature and then mutes the call while the headset
is on their head, the call will remain muted
even if the user removes and places back the headset on the head.
BT/DECT call control
The following table illustrates the headset key functionalities and the related call control events when pressed.
Key button | Press | Double Press | Long Press |
---|---|---|---|
Multi-Function | Accept/End call | Reject call | Hold/Resume call |
Volume Roll-Up | Increase the volume | – | – |
Volume Roll Down | Decrease the volume | – | – |
Mute | Mute/Un-mute | – | – |
BT | Toggle BT on/off | – | BT pairing mode |
The RTX725x supports 2 active calls, meaning that the 3 rd incoming call will be rejected or ignored. If during a call the user receives an incoming call, the call can be rejected by double-pressing the Multi-Function key or accepted by long-pressing the same key. The long press will answer the incoming call and put on hold the current one.
Headset Music control
The user can control the music features by pressing the available keys on the headset. Volume control is supported in smartphones with operating systems older than 6.0 for Android and 5.0 for iOS. The volume levels will be synchronized between the headsets and the audio device. The keys will trigger the following events presented in the table below:
Key button | Press | Double Press | Long Press |
---|---|---|---|
Mute | Play/Pause music | Skip to the next track | – |
Volume Roll-Up | Increase the volume | – | – |
Volume Roll Down | Decrease the volume | – | – |
BT | Toggle BT on/off | – | BT pairing mode |
Summary
The table below presents a summary of the features available in the headsets.
Input | Functions |
---|---|
DECT frequency bands: | 1880 – 1895 MHz (Taiwan) |
1880 – 1900 MHz (EMEA)
1910 – 1920 MHz (Brazil & Uruguay)
1910 – 1930 MHz (LATAM, Argentina, Chile)
1920 – 1930 MHz (USA, Canada)
Narrowband Audio:| G.726, BV16
Wideband Audio (HD):| G.722, BV32
Music| 128 kbit/s CELT
LED Indicator
Status LED| Tricolor
Visibility| Mic boom tip
Hardware Features
Battery type| Lithium Polymer, replaceable
Battery capacity| 600 mAh
Microphones| 2 for talk (ENC) and 4 for ANC
Headset interface| USB to connect to the RTX7451 base
Charging terminals| Using USB
Operating conditions| -0 ⁰C to 45⁰C
Battery Performance
Talk time DECT| Up to 20 hours
Talk time BT| Up to 10 hours
Standby time DECT only:| Up to 100 hours
Standby time DECT+BT:| Up to TBD hours
Charge time (0% – 90%)| 3 hours
Quick charge| 25% in 30 minutes
Charge stop temperature| Low temperature stop charge: 5⁰C
High temperature stop charger: 40⁰C
Audio Features
Earpiece volume| See volume table
Coverage warning| On/Off
Language
Supported:| English (Voice prompts)
Call features
Call waiting| Yes
Hold / Retrieve| Yes
No. of simultaneous calls| 2, only one on hold
Call Conference| Yes
Call Swap| Yes
DECT
Output Power| 250 mW
140 mW (Uruguay, Canada, US, Malaysia, Jordan)
22 dBm (Chile, Australia)
Sensitivity| -92 dBm
Antenna| 2 for fast antenna diversity
Range (max)| 200m outdoor
Security| Class C
Standard DECT interface| Yes
Handover to VoIP multicell
systems| Yes
Software Update
Downloadable| Yes
Air-interface| Yes
Bluetooth
No. of pairings| 4
BT Version| 4.2 Classic
Frequency| 2401 MHz – 2480 MHz
Sensitivity| Better than -92 dBm @ DH1, measured at
antenna
Output power| Class 2, 2,5mW (4dBm)
Range| 10 meters in free line of sight measured outsight
Antenna| The antenna performance should be designed to
have a return loss of < -5dB in the relevant
frequency band
Simultaneous connections| 2
Profiles
A2DP| 1.2 Advanced Audio Distribution Profile
Help| 1.2 Headset Profile
HFP| 1.6 Handsfree Profile
DIP| 1.3 Device ID Profile
AVRCP| 1.4 Audio/Video Remote Control Profile
Codec|
SBC| For stereo streaming of music
NBC| For wideband audio
CVSD| For narrowband audio
Audio Codec| BV16
G.726
BV32
G.722
CELT48
Class of device| 0x200404 Headset device
0x200418 Headphones
Bluetooth device address| The address is stored in non-volatile memory
Bluetooth device name| The product shall use the name “XXXXXXXX” *
Encryption| Default 128-bit encryption
Pairing mode| Discoverable only by user request and limited time 1 minute
Automatic connect| An already paired Bluetooth device will automatically
connect to the headset.
Others|
HAC compliant| Yes
Regulatory compliances
Safety & Type approvals
The regulatory compliance and measurements reports required are:
Approval | Standard |
---|---|
GENERAL SAFETY | |
Safety | CB IEC62368, EN62368, IEC60950, EN60950 |
Including the country deviation to US/CA,
AU/NZ and EU
Safety| UL62368, and NRTL for US and CA
Safety| CB Scheme Certificate
| US
FCC| FCC Part 15B
FCC| FCC Part 15D
FCC| FCC Part 15.247
FCC| FCC SAR evaluation
FCC| FCC ID
| CANADA
IC| ICES-003 Issue 6, 2016
IC| IC RSS-213 Issue 3,March 2015
IC| IC RSS-102 issue 5 SAR evaluation
IC| IC RSS-247
IC| IC REL Cert and registration
IC| ISED ID
| EUROPEAN
CE| EN55032:2015 EMC-EMI&EMS
EN55024:2010
EN55035
CE| EN62479:2010
CE| EN301489-1 V2.2.0 (2017-03)
EN301489-6 V2.2.0 (2017-03)
EN301489-17 V3.2.0 (2017-03)
CE| IEC61000-4-2 Level 3
EN61000- 4-3 Level 3
CE| EN301406V2.2.2(2016-09)
EN300328V2.1.1(2016-11)
CE| SAR-EN62209-1:2006/EN62209-2:2010 ;
EN50360 :2001+A1:2012 EN 50566:2013/AC:2014
CE| AOC certificate
| AUSTRALIA/NZ
RCM| AS/NZS CISPR 32:2015
RCM| EMC-AS/NZS CISPR 22:2009+A1:2010
RCM| RF-AS/NZS 4268:2017
RCM| SAR-AS/NZS 2772.1; AS/NZS 2772.2:2011
RCM| Acoustic AS/CA S004
RCM| HAC AS/ACIF S040
Environmental compliances
RoHS
Per Directive 2011/65/EU on the Restriction of the use of certain Hazardous
Substances in Electrical and Electronic
Equipment
REACH
Per Directive 1907/2006 on Registration, Evaluation, and Authorization of
Chemicals
WEEK
Per Directive 2012/19/EU on Waste Electrical and Electronic Equipment (RTX
will add waste bin information on product labels).
Packaging: EU Directive 97/129/EC establishes the identification system for
packaging materials pursuant to European Parliament and Council Directive
94/62/EC on packaging and packaging waste
APPENDIX
DECT cradle registration
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.
The headset can be registered as both primary and secondary. When the headset
is locked as secondary on another RTX745x base or on an RTX374x FP dongle, the
user may return the headset to use its primary state by inserting the headset
into the cradle of the primary base.
Step 1 Insert the headset into the base cradle
Step 2 The headset identifies itself as the base
Step 3 The base decides if the headset can register
a. If the headset is allowed to register it plays back the “Registering” voice
prompt once
i. The headset starts the “Registration, in progress” LED pattern
ii. The base displays a visible notification that cradle registration is
initiated
iii. The headset plays back the “Registration succeeded” voice prompt once
iv. The headset displays the “Registration, success” LED pattern
v. The base displays a visible notification that cradle registration succeeded
b. If the headset is not allowed to register it plays back the “Registration
failed” voice prompt once
i. The headset displays the “Registration, failure” LED pattern
ii. The base displays a visible notification that cradle registration failed
Declaration of compliance
FCC warning
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications to this equipment not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
For Handset
SAR tests are conducted using standard operating positions accepted by the FCC
with the device transmitting at its highest certified power level in all
tested frequency bands, although the SAR is determined at the highest
certified power level, the actual SAR level of the device while operating can
be well below the maximum value. Before a new model device is available for
sale to the public, it must be tested and certified to the FCC that it does
not exceed the exposure limit established by the FCC, tests for each device
are performed in positions and locations as required by the FCC. For body-worn
operation, this model device has been tested and meets the FCC RF exposure
guidelines when used with an accessory designated for this product or when
used with an accessory that contains no metal.
For Base
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
a minimum distance of 20cm between the radiator& your body. This the
transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter located or
operating in conjunction with any other antenna or transmitter.
ISEDC Warning
This device contains license-exempt transmitter(s)/receiver(s) that comply with Innovation, Science, and Economic Development Canada’s license-exempt RSS(s). Operation is subject to the following two conditions:
- This device may not cause interference.
- This device must accept any interference, including interference that may cause undesired operation of the device.
For Handset
SAR tests are conducted using standard operating positions accepted by the
ISEDC with the device transmitting at its highest certified power level in all
tested frequency bands, although the SAR is determined at the highest
certified power level, the actual SAR level of the device while operating can
be well below the maximum value. Before a new
model device is available for sale to the public, it must be tested and
certified to the ISEDC that it does not exceed the exposure limit established
by the ISEDC, tests for each device are performed in positions and locations
as required by the ISEDC. For body-worn operation, this model device has been
tested and meets the ISEDC RF exposure
guidelines when used with an accessory designated for this product or when
used with an accessory that contains no metal
For Base
This equipment complies with ISEDC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
a minimum distance of 20cm between the radiator& your body. This transmitter
must not be co-located or operating in conjunction with any other antenna or
transmitter located or
operating in conjunction with any other antenna or transmitter.
This Class B digital apparatus complies with Canadian ICES-003.
RTX725x GUIDE 1.0
Proprietary and Confidential
Technical Reference Document
Version 1.0
© Apr-2020 RTX A/S, Denmark