T2C-WHB620DECT Wireless Headset (Base)

DECT Wireless Headset Quick Start Guide V1.0 Yealink Documentation support.yealink.com WH B620,WHD622,WHM621 Package List WHB620 Base (Teams/UC)WHM621/WHD622 Headset Quick Start Guide We recommend that you use the included accessories, and other accessories may have compatibility issues that prevent them from working properly. Power Adapter Micro USB to USB-A USB2.0 Cable 0.8M Micro USB to USB-A USB2.0 Cable 1.2M Busylight BLT60 (Optional) How to Connect Busylight BLT60 Headset Wear and Adjustment Earmuff Replacement 1/2’’ 12mm How to Use 1 3 2 (Teams Edition) Press to invoke the Teams client; Hold 2 seconds to activate Cortana. (UC Edition) Hold 2 seconds to activate voice assistant. PC Button Teams Button Voice Assistant Button Before using the Teams button functions, you should install the Microsoft Teams client on your PC, smartphone or tablet. 3 Teams Edition UC Edition 3 1 2 Phone Button Press to enter the phone dialing screen, answer or end a phone's call. Press to enter the softphone dialing screen, answer or enter a softphone's call. Volume Up Volume Down Teams Button/ Answer Call Button Mute Button 6 5 7 4 4 5 7 Hold 2 seconds to activate Cortana; Press to turn up/down volume. Press to mute or unmute microphone. Press to answer, reject, or end a call. 6 Regulatory Notices Operating Ambient Temperatures • Operating temperature: +14 to 122°F (-10 to 50°C) • Relative humidity: 5% to 90%, noncondensing • Storage temperature: -22 to +160°F (-30 to +70°C) Warranty Our product warranty is limited only to the unit itself, when used normally in accordance with the operating instructions and the system environment. We are not liable for damage or loss resulting from the use of this product, or for any claim from a third party. We are not liable for problems with Yealink device arising from the use of this product; we are not liable for financial damages, lost profits, claims from third parties, etc., arising from the use of this product. DC symbol is the DC voltage symbol. Restriction of Hazardous Substances Directive (RoHS) This device complies with the requirements of the EU RoHS Directive. Statements of compliance can be obtained by contacting [email protected]. Safety Instructions Save these instructions. Read these safety instructions before use! The following basic safety precautions should always be followed to reduce risk of fire, electrical shock, and other personal injury. General Requirements • Before you install and use the device, read the safety instructions carefully and observe the situation during operation. • During the process of storage, transportation, and operation, please always keep the device dry and clean. • During the process of storage, transportation, and operation, please avoid collision and crash of the device. • Please attempt not to dismantle the device by yourself. In case of any discrepancy, please contact the appointed maintenance center for repair. • Without prior written consent, no organization or individual is permitted to make any change to the struc- ture or the safety design of the device. Yealink is under no circumstance liable to consequences or legal issues caused by such changes. • Please refer to the relevant laws and statutes while using the device. Legal rights of others should be respected as well. Environmental Requirements • Place the device at a well-ventilated place. Do not expose the device under direct sunlight. • Keep the device dry and free of dusts. • Place the device on a stable and level platform. • Please place no heavy objects on the device in case of damage and deformation caused by the heavy load. • Keep at least 10 cm between the device and the closest object for heat dissipation. • Do not place the device on or near any inflammable or fire-vulnerable object, such as rubber-made mate- rials. • Keep the device away from any heat source or bare fire, such as a candle or an electric heater. • Keep the device away from any household appliance with strong magnetic field or electromagnetic field, such as a microwave oven or a refrigerator. Operating Requirements • Do not let a child operate the device without guidance. • Do not let a child play with the device or any accessory in case of accidental swallowing. • Please use the accessories provided or authorized by the manufacturer only. • The power supply of the device shall meet the requirements of the input voltage of the device. Please use the provided surge protection power socket only. • Before plugging or unplugging any cable, make sure that your hands are completely dry. • Do not spill liquid of any kind on the product or use the equipment near water, for example, near a bathtub, washbowl, kitchen sink, wet basement or near a swimming pool. • Do not tread on, pull, or over-bend any cable in case of malfunction of the device. • During a thunderstorm, stop using the device and disconnect it from the power supply. Unplug the power plug and the Asymmetric Digital Subscriber Line (ADSL) twisted pair (the radio frequency cable) to avoid lightning strike. • If the device is left unused for a rather long time, disconnect it from the power supply and unplug the power plug. • When there is smoke emitted from the device, or some abnormal noise or smell, disconnect the device from the power supply, and unplug the power plug immediately. Contact the specified maintenance center for repair. • Do not insert any object into equipment slots that is not part of the product or auxiliary product. • Before connecting a cable, connect the grounding cable of the device first. Do not disconnect the ground- ing cable until you disconnect all other cables. Cleaning Requirements • Before cleaning the device, stop using it and disconnect it from the power supply. • Use a piece of soft, dry and anti-static cloth to clean the device. • Keep the power plug clean and dry. Using a dirty or wet power plug may lead to electric shock or other perils. ENVIRONMENTAL RECYCLING Never dispose of the device wi…

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YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. 309, 3rd Floor, No.16, Yun Ding North Road, Huli District, Xiamen City, Fujian, China Tel: 86-592-5702000 Fax: 86-592-5702455 Email: [email protected] QA-FR-170-B 7/29/2014 FCC Authorization Date: 2020-09-10 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD., the undersigned, hereby authorizes Bay Area Compliance Laboratories Corporation to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Bay Area Compliance Laboratories Corporation on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signature: Stone Lu Vice General Manager

YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. 309, 3rd Floor, No.16, Yun Ding North Road, Huli District, Xiamen City, Fujian, China Tel: 86-592-5702000 Fax: 86-592-5702455 Email: [email protected] FCC Confidential Authorization Date: 2020-09-10 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: T2C-WHB620 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. hereby requests long-term confidential treatment of information accompanying this application as outlined below: • Block Diagram • Schematics • Operation Description As well as short-term confidential treatment of information accompanying this application for a period of 180 days after grant is issued as outlined below: • Internal Photos • User’s Manual • External Photos • Test Set-up Photos The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely Yours, Signature Stone Lu Vice General Manager

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200819002-RF EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200819002-RF Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200819002-RF Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200819002-RF Adapter 1 (Model: YLPS051200B1-US) Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200819002-RF Adapter 2 (Model: YLPS051200C1-US)

EXHIBIT A - FCC ID LABEL AND LOCATION FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925)

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200819002-RF EXHIBIT C - EUT INTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200819002-RF Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200819002-RF Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200819002-RF Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200819002-RF ANT0 ANT1

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200819002-00 FCC Part 15D Page 10 of 50 §1.1307 (b) (1) & §2.1091- MAXIMUM PERMISSIBLE EXPOSURE (MPE) Applicable Standard According to FCC §15.319(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Limits for Maximum Permissible Exposure (MPE) (§1.1310, §2.1091) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (minute) Limits for General Population/Uncontrolled Exposure 0.3-1.34 614 1.63 *(100) 30 1.34-30 842/f 2.19/f *(180/f\2\) 30 30-300 27.5 0.073 0.2 30 300-1500 / / f/1500 30 1500-100,000 / / 1.0 30 f = frequency in MHz * = Plane-wave equivalent power density MPE Calculation Predication of MPE limit at a given distance S = 2 4R PG  Where: S = power density (in appropriate units, e.g. mW/cm 2 ); P = power input to the antenna (in appropriate units, e.g., mW); G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna (appropriate units, e.g., cm); For worst case: Frequency (MHz) Antenna Gain Maximum Tune- up power Evaluation Distance (cm) Power Density (mW/cm 2 ) MPE Limit (mW/cm 2 ) (dBi) (numeric) (dBm) (mW) 1921.536 - 1928.448 0 1.0 20 100 20 0.02 1.0 Result: The device meets MPE limit at 20 cm distance.

Note: This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “★”. BACL is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with an asterisk ’*’. Customer model name, addresses, names, trademarks etc. are not considered data. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. FCC PART 15D MEASUREMENT AND TEST REPORT For YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. 309, 3rd Floor, No.16, Yun Ding North Road, Huli District, Xiamen City, Fujian, China FCC ID: T2C-WHB620 R e p o r t T y p e : O r i g i n a l R e p o r t P r o d u c t T y p e : D E C T Wi r e l e s s H e a d s e t Report Number: RSZ200819002-00 Report Date: 2020-10-20 Reviewed By: Jacob Kong RF Engineer Prepared By: Bay Area Compliance Laboratories Corp. (Shenzhen) 6/F., West Wing, Third Phase of Wanli Industrial Building, Shihua Road, Futian Free Trade Zone, Shenzhen, Guangdong, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200819002-00 FCC Part 15D Page 50 of 50 TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 TEST METHODOLOGY .................................................................................................................................................. 4 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 TEST FACILITY ............................................................................................................................................................. 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 6 LOCAL SUPPORT EQUIPMENT LIST AND DETAILS ........................................................................................................ 6 EXTERNAL I/O CABLE.................................................................................................................................................. 6 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 7 SUMMARY OF TEST RESULTS ............................................................................................................................... 8 TEST EQUIPMENT LIST ........................................................................................................................................... 9 §1.1307 (B) (1) & §2.1091- MAXIMUM PERMISSIBLE EXPOSURE (MPE) .......................................................... 10 APPLICABLE STANDARD ............................................................................................................................................ 10 MPE CALCULATION................................................................................................................................................... 10 FCC§15.317 & §15.203 - ANTENNA REQUIREMENT ......................................................................................... 11 APPLICABLE STANDARD ............................................................................................................................................ 11 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 11 FCC§15.315 & §15.207 - CONDUCTED EMISSIONS ............................................................................................ 12 APPLICABLE STANDARD ............................................................................................................................................ 12 EUT SETUP ................................................................................................................................................................ 12 EMI TEST RECEIVER SETUP ....................................................................................................................................... 12 TEST PROCEDURE ...................................................................................................................................................... 13 CORRECTED FACTOR & MARGIN CALCULATION ....................................................................................................... 13 TEST RESULTS SUMMARY .......................................................................................................................................... 13 TEST DATA ................................................................................................................................................................ 13 FCC§15.323 (A) - EMISSION BANDWIDTH ..............................................…

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Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200819002-RF EXHIBIT D - TEST SETUP PHOTOGRAPHS For Adapter 1: Conducted Emissions - Front View Conducted Emissions - Side View Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200819002-RF For Adapter 2: Conducted Emissions - Front View Conducted Emissions - Side View