Congratulations
on your purchase of this AT&T product. Before using this AT&T product, please 
read the Important safety information section on pages 146-148 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.
This telephone meets the California Energy Commission regulations for 
energy consumption. Your telephone is set up to comply with the  
energy-conserving standards right out of the box. No further action is necessary.
This telephone system is compatible with certain AT&T DECT 6.0 cordless headsets 
and speakerphones. Visit 
www.telephones.att.com/accessories for a list 
of compatible cordless headsets and speakerphones.
Model number:  CL83107 (one handset) 
    CL83207 (two handsets) 
    CL83307 (three handsets) 
    CL83407 (four handsets)
Type:     DECT 6.0 cordless telephone/answering system with  
     caller ID/call waiting
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 telephone base. 
Save your sales receipt and original packaging in case it is necessary to return 
your telephone for warranty service. 
© 2017 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.
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when used with most T-coil equipped hearing aids and cochlear implants. The 
TIA-1083 Compliant Logo is a trademark of the Telecommunications Industry 
Association. Used under license.
The ENERGY STAR® program (www.energystar.gov) recognizes and encourages 
the use of products that save energy and help protect our environment. We are 
proud to mark this product with the ENERGY STAR® label indicating it meets 
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