Congratulations
on your purchase of this AT&T product. Before using this AT&T product, 
please read the Important safety information section on pages 150-152  
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 system is compatible with certain AT&T DECT 6.0 cordless 
headsets. Visit www.telephones.att.com/headsets for a list of 
compatible cordless headsets.
Model number:   CLP99183 (one handset) 
     CLP99283 (two handsets) 
     CLP99353/CLP99383 (three handsets) 
     CLP99453/CLP99483 (four handsets) 
     CLP99553/CLP99583 (five handsets)
Type:     DECT 6.0 cordless telephone/answering system with  
     BLUETOOTH® wireless technology
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. 
© 2013 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.
Telephones identified 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.
The Bluetooth® word mark and logos are owned by Bluetooth SIG, Inc. and any use of such 
marks by Advanced American Telephones and its parent, VTech Holdings Limited, is under 
license. VTech Holdings Limited is a member of Bluetooth SIG, Inc. Other trademarks and trade 
names are those of their respective owners.