T2C-MCOREMAXVideo Conferencing Endpoint

YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. No.666 Hu'an Rd. Huli District Xiamen City, Fujian, P.R. China Tel: 86-592-5702000 Fax: 86-592-5702455 Email: [email protected] CFR 47 §2.911(d)(5)(i) Attestation Letter Attestation Letter Date: 2025-09-12 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(i) Filing FCC ID: T2C-MCOREMAX YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. certifies that the equipment for which authorization is sought, is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, Signature: Stone Lu Vice General Manager

YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. No.666 Hu'an Rd. Huli District Xiamen City, Fujian, P.R. China Tel: 86-592-5702000 Fax: 86-592-5702455 Email: [email protected] CFR 47 §2.911 (d)(5)(ii) Attestation Letter Attestation Letter Date: 2025-09-12 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(ii) Filing FCC ID: T2C-MCOREMAX YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. certifies that as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. And our product does not use Kaspersky software information. Sincerely, Signature: Stone Lu Vice General Manager

U.S. AGENT LETTER OF ATTESTATION Date: 2025-09-12 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(7) Filing FCC ID: T2C-MCOREMAX YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. certifies that, as of the date of the filing of the application, Iconsigh is our designated U.S. agent for service of process for the above referenced FCC ID. YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Iconsigh accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: Iconsigh Address: 2310 Homestead Road, Suite C1, Los Altos, CA, 94024, USA FRN: 0033398652 Tel.: +1 (408) 320-9867 Email: [email protected] Signed by (printed name): Benjamin Kaur Signature: Applicant: YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. Address: No.666 Hu'an Rd. Huli District Xiamen City, Fujian, P.R. China FRN: 0014702682 Tel: 86-592-5702000 Email: [email protected] Signed by (printed name): Stone Lu Signature:

YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. No.666 Hu'an Rd. Huli District Xiamen City, Fujian, P.R. China Tel: 86-592-5702000 Fax: 86-592-5702455 Email: [email protected] QA-FR-170-B 7/29/2014 FCC Authorization Date: 2025-09-12 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 Corp. (Shenzhen) 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 Corp. (Shenzhen) 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. No.666 Hu'an Rd. Huli District Xiamen City, Fujian, P.R. China Tel: 86-592-5702000 Fax: 86-592-5702455 Email: [email protected] FCC Confidential Authorization Date: 2025-09-12 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-MCOREMAX 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  Software Security 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

YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. No.666 Hu'an Rd. Huli District Xiamen City, Fujian, P.R. China Tel: 86-592-5702000 Fax: 86-592-5702455 Email: [email protected] Attestation Letter Date: 2025-09-12 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir/Madam, Our product Video Conferencing Endpoint, Model: MCore Max, FCC ID: T2C-MCOREMAX, for marketing purpose, this product only supports BDR (GFSK), EDR (π/4-DQPSK, 8DPSK), BLE 1M&2M, 2.4G Wi-Fi (2412-2462MHz, 802.11b/g/n20/n40/ax20/ax40 modes), 5G Wi-Fi (5150-5250MHz; 5250-5350MHz; 5470-5725MHz; 5725-5850MHz, 802.11a/n20/n40/ac20/ac40/ ac80/ac160/ax20/ax40/ax80/ax160 modes). The other functions, bands and modes were disabled to use by manufacture in the software, and for 802.11ax mode, it only supports full RU configuration not partial RU, the partial RU was also disabled by software, the end user has no capability to activate it. Sincerely Yours, Signature: Stone Lu Vice General Manager

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501T30351E-RF 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.: 2501T30351E-RFA TR-EM-RF009 Page 79 of 83 Version 4.1 RF EXPOSURE EVALUATION MPE-Based Exemption Applicable Standard According to subpart 2.1091 systems operating under the provisions of this section shall be operated in a manner that ensures the public is not exposed to RF energy level in excess of the communication guidelines. According to KDB 447498 D04 v01 Interim General RF Exposure Guidance MPE-Based Exemption: General frequency and separation-distance dependent MPE-based effective radiated power(ERP) thresholds are in Table B.1 [Table 1 of § 1.1307(b)(3)(i)(C)] to support an exemption from further evaluation from 300 kHz through 100 GHz. R is the minimum separation distance in meters f = frequency in MHz For multiple RF sources: Multiple RF sources are exempt if: in the case of fixed RF sources operating in the same time-averaging period, or of multiple mobile or portable RF sources within a device operating in the same time averaging period, if the sum of the fractional contributions to the applicable thresholds is less than or equal to 1 as indicated in the following equation: Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501T30351E-RFA TR-EM-RF009 Page 80 of 83 Version 4.1 Result Antenna Gain # ERP Mode Frequency (MHz) Tune up conducted power # (dBm) (dBi)(dBd)(dBm) (mW) Evaluation Distance (m) ERP Limit (mW) BT2402-2480 8.0 3.211.06 9.06 8.05 0.2768 BLE2402-24806.0 3.21 1.06 7.06 5.08 0.2768 2.4G Wi-Fi2412-246226.0 3.21 1.06 27.06 508.16 0.2768 5.2G Wi-Fi5180-524018.0 2.33 0.18 18.18 65.77 0.2768 5.3G Wi-Fi5260-532018.0 3.88 1.73 19.73 93.97 0.2768 5.6G Wi-Fi5500-572018.0 4.01 1.86 19.86 96.83 0.2768 5.8G Wi-Fi5745-582521.5 4.35 2.20 23.70 234.42 0.2768 Note: 1. The tune up conducted power and antenna gain was declared by the applicant. 2. 0dBd=2.15dBi 3. The BT, 2.4G and 5G Wi-Fi can transmit at same time. Simultaneous transmitting consideration (worst case): The ratio= ERP BT /limit + ERP 2.4G Wi-Fi /limit+ ERP 5.8G Wi-Fi /limit = 8.05/768+508.16/768+234.42/768 =0.977<1.0 So simultaneous exposure is compliant. To maintain compliance with the FCC’s RF exposure guidelines, place the equipment at least 20cm from nearby persons. Result: Compliant

Antenna Specification Model: 2.4-5GHz dual-band, rubber rod antenna, internal thread inner hole, diameter,10mm, length 109,WIFI external antenna Customer: YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. No.666 Hu'an Rd. Huli District Xiamen City, Fujian, P.R. China Jin Baoli Electronics Co., LTD Xinhuan Road, Langbei Village, Changping Town, Dongguan City 天线图片/ Antenna picture Unit: mm Antenna passive standing wave efficiency 3D apple image of the antenna 2400MHz 2450MHz 2500MHz 5150MHz 5500MHz 5850MHz

Note: The information marked # is provided by the applicant, the laboratory is not responsible for its authenticity and this information can affect the validity of the result in the test report. Customer model name, addresses, names, trademarks etc. are included. 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. This report must not be used by the customer to claim product certification, approval, or endorsement by NVLAP or any agency of the U.S. Government. This report may contain data that are not covered by the NVLAP accreditation and are marked with an asterisk “▼”. Bay Area Compliance Laboratories Corp. (Shenzhen) 5F(B-West) , 6F, 7F, the 3rd Phase of Wan Li Industrial Building D, Shihua Rd, FuTian Free Trade Zone, Shenzhen, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn TR-EM-RF009 Page 1 of 83 Version 4.1 TEST REPORT Applicant Name:YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD. Address:No.666 Hu'an Rd. Huli District Xiamen City, Fujian, P.R. China Report Number:2501T30351E-RFA FCC ID:T2C-MCOREMAX IC:10741A-MCOREMAX Test Standard (s) FCC PART 15.247; RSS-GEN ISSUE 5, FEBRUARY 2021 AMENDMENT 2; RSS-247 ISSUE 3, AUGUST 2023 Sample Description Product Type:Video Conferencing Endpoint Model No.:MCore Max Multiple Model(s) No.:N/A Trade Mark:Yealink Date Received:2025-05-19 Issue Date:2025-10-01 Test Result:Pass ▲ ▲ In the configuration tested, the EUT complied with the standards above. Prepared and Checked By:Approved By: Ekko WuNancy Wang RF EngineerRF Supervisor Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501T30351E-RFA TR-EM-RF009 Page 2 of 83 Version 4.1 TABLE OF CONTENTS DOCUMENT REVISION HISTORY ..........................................................................................................................3 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 SUMMARY OF TEST RESULTS ................................................................................................................................9 TEST EQUIPMENT LIST ..........................................................................................................................................10 REQUIREMENTS AND TEST PROCEDURES ......................................................................................................12 AC LINE CONDUCTED EMISSIONS...............................................................................................................................12 RADIATED EMISSIONS .................................................................................................................................................14 20 DB EMISSION BANDWIDTH & 99% OCCUPIED BANDWIDTH ..................................................................................17 CHANNEL SEPARATION TEST ......................................................................................................................................19 QUANTITY OF HOPPING CHANNEL TEST .....................................................................................................................21 TIME OF OCCUPANCY (DWELL TIME) .........................................................................................................................23 PEAK OUTPUT POWER MEASUREMENT .......................................................................................................................25 BAND EDGES ...............................................................................................................................................................27 CONDUCTED SPURIOUS EMISSION...............................................................................................................................28 ANTENNA REQUIREMENT .....................................................................................................................................30 TEST DATA AND RESULTS .....................................................................................................................................31 AC LINE CONDUCTED EMISSIONS...............................................................................................................................31 RADIATED EMISSIONS .................................................................................................................................................34 20 DB EMISSION BANDWIDTH .....................................................................................................................................53 99% OCCUPIED BANDWIDTH .............................................................................................................…

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