EW780-8523-011.9GHz DECT Cordless Phone with Headset

User’s manual TL7912 DECT 6.0 cordless headset and handset lifter Congratulations on your purchase of this AT&T product. Before using this AT&T product, please read the Important safety information section on pages 51-54 of this manual. Please thoroughly read this user’s manual for all the feature operations and troubleshooting information necessary to install and operate your new AT&T product. You can also visit our website at www.telephones.att.com or call 1 (800) 222-3111. In Canada, dial 1 (866) 288-4268. Model number: TL7912 (Headset, headset base and handset lifter) Type: DECT 6.0 cordless headset and handset lifter Serial number: Purchase date: Place of purchase: Both the model and serial numbers of your AT&T product can be found on the bottom of the headset base and lifter. Save your sales receipt and original packaging in case it is necessary to return this product for warranty service. © 2012 Advanced American Telephones. All Rights Reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property licensed to Advanced American Telephones, San Antonio, TX 78219. Printed in China. Parts checklist Check to make sure the headset package includes the following items. Save your sales receipt and original packaging in the event warranty service is necessary. Cordless headset with medium-sized earbud attached Battery pack (battery with battery compartment cover attached) User's manual User’s manual TL7912 DECT 6.0 cordless headset and handset lifter Quick start guide Quick start guide TL7912 DECT 6.0 cordless headset and handset lifter 2 earbuds Behind-the-neck bandOver-the-head band Line splitter 2 over-the-ear hooks Parts checklist (continued) Auxiliary ring detector Telephone line cordLarge lifter padlifter pad padHandset lifterlifter Headset base Anti-slip pad USB cable Headset base power adapter Corded phone connection cable Optional accessory In this manual, there are references to TL7900. The TL7900 includes an expansion headset and a headset charger (up to two headsets can be used with the same headset base). TL7900 can be purchased separately. For more information about the product, visit our website at www.telephones.att.com. User’s manual TL7912 DECT 6.0 cordless headset and handset lifter 1 light status RedOn when the headset is charging in the headset base. Flashes every 10 seconds to indicate the battery is low when the headset is not in the headset base. Flashes three times to indicate the headset is powering off. • • • BlueOn when a fully charged and registered headset is in the headset base. Flashes three times to indicate the headset is powering on. Flashes twice every three seconds when the headset is in use. Flashes four times every four seconds when there is an incoming call in PHONE mode. Flashes every 10 seconds when a fully charged and registered headset in idle mode is out of the headset base. • • • • • Red and blueFlashes slowly when the headset is not registered. Flashes quickly when the headset is trying to register to a headset base or telephone base. • • OffThe battery is dead. No battery is installed. The headset is powered off. • • • Quick reference guide - headset Headset lights (On/off button and light) Press to make, answer or end a call (pages 31 and 32). Getting started 2 Getting started VOL+/VOL- Push the volume switch on the headset to the right or left to adjust the headset ringer volume while in idle mode (page 32) or the listening volume while on a call (page 35). Earpiece Microphone The microphone incorporates noise canceling technology for clearer calls. MUTE/FLASH Press to mute the microphone during a call (page 36). Press and hold for two seconds to answer an incoming call when you receive a call waiting alert during a call (page 33). Press to mute the ringer in the earpiece when there is an incoming call (page 33). Quick reference guide - headset Battery pack Open to replace the battery pack. 3 Getting started One short beepHeadset key tone.• One short beep every 30 seconds Muted headset microphone alert tone.• Two beepsError alert tone. The ringer volume is at its lowest setting. The listening volume is at its highest or lowest setting. Any key is pressed while the headset is out of range. • • • • Two low beepsCall waiting alert tone.• Two rapid beeps every 20 seconds Low battery warning.• Three rising beepsA conference call starts.• Three rapid beeps every 20 seconds The headset is out of range. The headset is not yet registered. • • Ring toneIncoming call alert tone. Ring back tone. • • Three rapid beepsThe headset is powering on or off.• Quick reference guide - headset Headset alert tones 4 Getting started Quick reference guide - headset base Magnetic charging mount Place the headset here for charging. MUTE (light) PAIR Use to initiate headset registration or deregistration. PHONE (mode button and light) PC (mode button and light) MUTE (Red) On when you are registering a headset. Flashes when the mute function is in use. Flashes when you are deregistering headset(s) from the headset base. • • • PHONE (Blue) On when PHONE mode (default mode) is selected on the idle headset base. Flashes four times every four seconds when there is an incoming call. Flashes twice every three seconds when the headset is in use in PHONE mode, or when there is a conference call in both PHONE and PC modes. Flashes slowly when a call is on hold in PHONE mode. • • • • PC (Blue) On when PC mode (default mode) is selected on the idle headset base. Flashes twice every three seconds when the headset is in use in PC mode, or when there is a conference call in both PC and PHONE modes. Flashes slowly when a call is on hold in PC mode. • • • Headset base lights 5 Getting started VOLUME /MICROPHONE Press the volume keys on the side of the headset base to adjust the speaking volume when on a call (page 35). CORDED HANDSET CONNECTED/ YES/NO Choose the setting based on whether you are using a corded handset (page 13). LIFTER This jack is only used with the hand…

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Appendix B1 Letter of Agency for FCC Certification May 14, 2012 To whom it may concern, Letter of Agency I, an officer of VTech Telecommunications Limited do hereby authorize Intertek Testing Services (Mr. Ken Sit/ Mr. Melvin Nip) to act on our behalf in front of the Federal Communications Commission with respect to all matters relating to certification of equipment under Part 15 and/or Part 95 of the FCC Rules until further notice. I further certify that no party (as defined in §1.2002(b) of CFR 47, 2004) to this application, including myself, is 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. Regards, Samson Man Approbation Supervisor

VTech Telecommunications Ltd May 10, 2012 To whom it may concern, Request for Permanent Confidentiality Under FCC Part 15 Certification FCC ID: EW780-8523-01 Request is hereby submitted by VTech Telecommunications Ltd. to withhold permanently from public review certain portions of the application for equipment certification for the referenced FCC identifiers. This request for confidentiality is made pursuant to 47 CFR § 0.457(d) and 0.459 of the FCC Rules. In particular, the following sections of the application are to be kept permanently confidential and VTech Telecommunications Ltd. reserves the right to discern which parties can obtain access to these information: • Schematics • Detailed Block diagrams • Detailed Operational/Functional Description The rationale for request for confidentiality is as followings: This information represents intellectual property of VTech Telecommunications Ltd . and it is subject to competition. We have invested considerable time and materials in research and development to produce the referenced product. Disclosure of the permanently confidential portions of this application to competitors would not only give them significant competitive advantages in developing similar products, but would also disclose successful implementation of unpublished, leading edge technology developed by us. If you have questions or need further information, please contact the undersigned. Regards, Samson Man Approbation Supervisor

VTech Telecommunications Ltd Date: April 27, 2012 To whom it may concern, Declarations FCC ID: EW780-8523-00 ( for Base Unit) FCC ID: EW780-8523-00( for Headse Unit) IC: 1135B-80852300 I, the undersigned, hereby declare that 1. The device does not use the provisions of 47CFR 15.323 (c) (6), random waiting mechanism is not used in this system. 2. The provisions of 47CFR 15.323 (c) (10) and 47CFR 15.323 (c) (11) are not used to extend the range of spectrum occupied over space or time for the purpose of denying fair access to spectrum to other devices. 3. Only the headset will act as the initiating device, which will initiate the establishment of the duplex connection. 4. The device complies with the provisions of 47CFR 15.319(f). The device shall automatically discontinue transmission in case of either absence of information to transmit or operational failure. These provisions are not intended to preclude transmission of control and signaling information or use of repetitive codes used by certain digital technologies to complete frame or burst intervals. The following table explains the reaction of device in case of either absence of information to transmit or operational failure after a connection of its companion device is established. Circumstances Reaction of Base Unit Reaction of Handset 1 Switch-off companion device NA NA 2 On Hook by companion device B NA 3 Remove power from companion device B A 4 Switch-off device NA NA 5 On Hook on device side NA C 6 Remove power from device A C A – Connection is terminated and, transmission ceases. B – Connection is terminated but device transmits control or signalling information. C – Connection is terminated but companion device transmits control or signalling information. N A – Not applicable If you have questions or need further information, please contact the undersigned. Regards, Name: Samson Man Title: Approbation Supervisor

INTERTEK TESTING SERVICES External Photos FCC ID: EW780-8523-01 IC: 1135B-80852300 external photos - 1 of 1 HK12050056 Job Number HK12050056 Job Number

INTERTEK TESTING SERVICES Internal photos FCC ID: EW780-8523-01 IC: 1135B-80852300 internal photos - 1 of 4 Headset assembly (View 1) Headset assembly (View 2) INTERTEK TESTING SERVICES Internal photos FCC ID: EW780-8523-01 IC: 1135B-80852300 internal photos - 2 of 4 Headset Main PCB comp side (View 1) Headset Main PCB comp side (View 2) INTERTEK TESTING SERVICES Internal photos FCC ID: EW780-8523-01 IC: 1135B-80852300 internal photos - 3 of 4 Headset Main PCB solder side (View 1) Headset Main PCB solder side (View 2) INTERTEK TESTING SERVICES Internal photos FCC ID: EW780-8523-01 IC: 1135B-80852300 internal photos - 4 of 4 Headset Oscillator PCB comp side

June 09, 2012 VTech Telecommunications Ltd Model: TL7912 FCC ID: EW780-8523-01 Product Description: DECT 6.0 cordless Headset Ear Bud SAR exemption: This device has been excluded from SAR testing based on source-based time- averaged conducted output power is less than 60/f per it operates with a maximum of 1 TDMA slot out of the 24 total slots. This document serves as the RF exposure exhibit in the FCC Form 731 application in lieu of a SAR report and has been reviewed and accepted by the FCC prior to submittal to the TCB. Operational Description: The TL7912 is a DECT 6.0 cordless Headset. It operates at frequency range of 1921.536MHz to 1928.448MHz with 5 channels. The Headset is powered by a “Li- ion Polymer” rechargeable battery pack. Each Headset (TL7912) must be registered to Base unit (DECT 6.0 cordless telephone system) before use. By simply pressing the central button, the user can pick up the call during phone ringing and to end the call during a call. The headset can adjust its earpiece volume and ringer volume. RF Exposure Conditions: The Headset is intended for use in the portable exposure condition and the General Population / Uncontrolled RF exposure environment. Intertek Testing Services Hong Kong Ltd. 2/F, Garment Center,576 Castle Peak Road, Kowloon, Hong Kong Phone: 852-2173 8888 /fax: 852- 2785 5487 Transmission Mode: The TL7912 cordless Headset utilizes a DECT wireless communication technology with a maximum of 1 TDMA slot out of the 24 total slots. Duty Cycle: Under DECT mode, the TL7912 - wireless Headset operates with a maximum of 1 TDMA slot out of the 24 total slots. The length of time for each single slot is roughly the same as 420μs and the 24 total slots is 10ms as a transmission period. RF Output Power: Tx frequency range: 1921.536 ~ 1928.448MHz Antenna-to-tissue phantom separation: 2mm Maximum Output Power: 19.04dBm (80.1mW) Maximum Duty Factor: 4.16% 60/f(GHz) mW = 31.26mW Source-based time-averaged conducted output power is 3. 33mW =< 60/f Intertek Testing Services Hong Kong Ltd. 2/F, Garment Center,576 Castle Peak Road, Kowloon, Hong Kong Phone: 852-2173 8888 /fax: 852- 2785 5487

INTERTEK TESTING SERVICES 26dB Emission Bandwidth Plots FCC ID: EW780-8523-01 26bw - 1 of 1 A0 Handset unit, Lowest channel, Traffic carrier Handset unit, Highest channel, Traffic carrier

INTERTEK TESTING SERVICES Unwanted Emission Inside The Sub-Band Plots FCC ID: EW780-8523-01 inband - 1 of 1 Handset unit, Lowest channel, Traffic carrier Handset unit, Highest channel, Traffic carrier A0

INTERTEK TESTING SERVICES Peak Transmit Power Plots FCC ID: EW780-8523-01 IC: 1135B-80852300 peaktp - 1 of 2 A0 Handset unit, Lowest channel, Traffic carrier Handset unit, Middle channel, Traffic carrier INTERTEK TESTING SERVICES Peak Transmit Power Plots FCC ID: EW780-8523-01 IC: 1135B-80852300 peaktp - 2 of 2 A0 Handset unit, Highest channel, Traffic carrier

INTERTEK TESTING SERVICES Power Spectral Density Plots FCC ID: EW780-8523-01 psd - 1 of 1 A0 Handset unit, Lowest channel, Traffic carrier Handset unit, Highest channel, Traffic carrier

- The test report only allows to be revised within the retention period unless further standard or the requirement was noticed. - This report is for the exclusive use of Intertek's Client and is provided pursuant to the agreement between Intertek and its Client. Intertek's responsibility and liability are limited to the terms and conditions of the agreement. Intertek assumes no liability to any party, other than to the Client in accordance with the agreement, for any loss, expense or damage occasioned by the use of this report. Only the Client is authorized to permit copying or distribution of this report and then only in its entirety. Any use of the Intertek name or one of its marks for the sale or advertisement of the tested material, product or service must first be approved in writing by Intertek. The observations and test results in this report are relevant only to the sample tested. This report by itself does not imply that the material, product, or service is or has ever been under an Intertek certification program. Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. Tel: (852) 2173 8888 Fax: (852) 2785 5487 Website: www.hk.intertek-etlsemko.com VTech Telecommunications Ltd. Application For 47 CFR Part 15: 2010 Certification RSS-213 Issue 2, December 2005 Equipment Certification Unlicensed Personal Communication Service Devices/ 2 GHz License-exempt Personal Communications Service Devices FCC ID: EW780-8523-01 Headset Unit of Model: TL7810, TL7812, TL7800, TL7910, TL7912, TL7900, HC8810, HC8812, HC8800 IC: 1135B-80852300 Headset Unit of Model: TL7810, TL7812, TL7800, TL7910, TL7912, TL7900, HC8810, HC8812, HC8800 Test Report Number: HK12050056-3 Issue Date: June 14, 2012 MN/KY INTERTEK TESTING SERVICES Test Report Number: HK12050056-3 Page 1 of 51 FCC ID: EW780-8523-01 IC: 1135B-80852300 Table of Contents 1.0 Summary of Test Results........................................................................................ 4 2.0 General Description................................................................................................. 7 2.1 Product Description ................................................................................................. 7 2.2 Technical Description .............................................................................................. 7 2.3 Test Methodology.................................................................................................... 8 2.4 Test Facility............................................................................................................. 8 3.0 System Test Configuration.................................................................................... 10 3.1 Justification ........................................................................................................... 10 3.2 Conducted Emission Test Configuration ................................................................ 11 3.3 Conducted Monitoring and Operational Test Configuration.................................... 11 3.4 EUT Exercising Software....................................................................................... 11 3.5 Details of EUT and Description of Peripherals....................................................... 12 3.6 Measurement Uncertainty ..................................................................................... 12 4.0 Measurement Results............................................................................................ 14 4.1 Antenna Requirement........................................................................................... 14 4.2 Digital Modulation Techniques............................................................................... 14 4.3 Emission Bandwidth.............................................................................................. 15 4.4 Directional Gain of the Antenna ............................................................................. 16 4.5 Peak Transmit Power ............................................................................................ 17 4.6 Power Spectral Density ......................................................................................... 18 4.7 Automatic Discontinuation of Transmission............................................................ 19 4.8 Unwanted Emission Inside the Sub-Band .............................................................. 20 4.9 Emissions Outside the Sub-Band .......................................................................... 21 4.9.1 Radiated Emissions Configuration Photographs ................................................. 22 4.9.2 Radiated Emissions Data ................................................................................... 22 4.9.3 Field Strength Calculation................................................................................... 26 4.9.4 Average Factor Calculation and Transmitter ON Time Measurements ................ 27 4.10 AC Power Line Conducted Emissions ................................................................. 28 4.11 Radio Frequency Radiation Exposure.................................................................. 29 4.12 Radio Frequency Exposure Compliance.............................................................. 29 4.13 Frame Repetition Stability .................................................................................. 30 4.14 Frame Period and Jitter ...................................................................................... 31 4.15 Carrier Frequency Stability .................................................................................. 32 4.16 Monitoring Threshold........................................................................................... 34 4.16.1 Lower Monitoring Threshold ............................................................................. 35 4.16.2 Least Interfered Channel .............................…

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INTERTEK TESTING SERVICES The Worst Case Configuration Photographs - Mode: Transmission FCC ID: EW780-8523-01 IC: 1135B-80852300 config photos (radiated emission - headset) - 1 of 1 Radiated Emission - Headset Front View Rear View