1
Product overview
This AT&T TR1909 Trimline® telephone with caller ID/call waiting 
can be used either in desktop or wall mount position, and requires 
four AA alkaline batteries (not included) for all functions. The 
telephone can still operate with limited features when there are no 
batteries installed.
The TR1909 telephone features a 13-number memory for fast 
dialing and has a call log which can store up to 80 additional 
numbers with names. It also has a caller ID feature which supports 
caller ID with call waiting service. (Caller ID services are subscriber 
services available from your telephone service providers for a fee.)
This user’s manual contains detailed instructions for installing and 
operating your AT&T TR1909 Trimline® telephone with caller ID/call 
waiting. Please follow the instructions carefully.
Getting started