User Manual
Table Of Contents
- Technical specifications
 - Limited warranty
 - California Energy Commission battery charging testing instructions
 - FCC Part 15
 - FCC Part 68 and ACTA
 - For C-UL compliance
 - Especially about cordless telephones
 - Precautions for users of implanted cardiac pacemakers
 - Pacemaker patients
 - ECO mode
 - Especially about telephone answering systems
 - Important safety information
 - Maintenance
 - Troubleshooting
 - Deregistering handsets
 - Adding and registering handsets
 - Battery installation and charging
 - Charger installation
 - Quick reference guide
 - Installation
 
Congratulations
on your purchase of this AT&T product. Before using this AT&T 
product, please read the Important safety information section on 
pages 23-25 of this manual. For complete instructions, please 
refer to the manual provided with your CL82115/CL82215/CL82315/
CL82415/CL82465/CL82515/CL83215/CL83315/CL83365/CL83415/
CL83465/CL83565/CL84115/CL84215/CL84265/CL84365 telephone. 
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.
Model number:  CL80115
Type:  DECT 6.0 expansion handset
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. 
© 2015-2017 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.
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 supply this product with an 
ENERGY STAR® qualied power adapter meeting the latest energy 
eciency guidelines.
T
Compatible with
Hearing Aid T-Coil
TIA-1083
Telephones identied with this logo have reduced noise and 
interference 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.










