User guide
REGULATORY INFORMATION
262
Antenna Care/Unauthorized Modifications 
Use only the supplied integral antenna. Unauthorized antenna 
modifications or attachments could damage the unit and may violate 
FCC regulations. Any changes or modifications not expressly 
approved by the party responsible for compliance could void the 
user’s authority to operate the equipment.
Potentially Unsafe Areas 
Potentially explosive atmospheres: Turn off your Treo 750 when you 
are in any areas with a potentially explosive atmosphere, such as 
fueling areas (gas or petrol stations) or storage facilities for fuel or 
chemicals.
Declaration of Conformity
Treo 750
Palm declares that the above model of Treo 750 is compliant with the 
regulations below. The declaration applies to the Treo 750 and its 
associated accessories (power supply, headset, and USB cable) 
where applicable. 
To view the highest reported (FCC) SAR values of the Treo™
750, visit www.palm.com/38057
.
FCC OET Bulletin 65 Supplement C
Safety: EN 60950: 2000 (Jan-2000)
Radiated Emissions: EN 55022
FCC ID: O8F-KITT
IC ID: 3905A-KITT
Operational Warnings
IMPORTANT INFORMATION ON SAFE AND EFFICIENT 
OPERATION. Read this information before using your integrated 
multi-service portable radio. 
For the safe and efficient operation of your radio, observe these 
guidelines:
Potentially Unsafe Areas/Potentially explosive 
atmospheres Obey all signs and instructions regarding turning off 
your Treo 750. In particular, turn off your Treo 750 when you are in any 
areas with a potentially explosive atmosphere, such as fueling areas 
Using TTY 
A TTY (also known as TDD or text telephone) is a 
telecommunications device that allows people who are deaf or 
hard of hearing, or who have speech or language disabilities, to 
communicate by telephone.
Your Palm Treo 750 is compatible with select TTY devices. You can 
connect a TTY/TDD machine to your Treo 750 through the headset 
jack, but you cannot use your headset jack with a headset or 
hands-free kit while this mode is enabled. Please check with the 
manufacturer of your TTY device for connectivity information and 
to ensure that the TTY device supports digital wireless 
transmission.
To use TTY, you may need to make additional arrangements with 
AT&T. Please contact AT&T’s customer service department for 
more information.
1 Press the Start button and select Settings.
2 Select Personal, and then select Phone.
3 Select Phone.
4 Select the TTY/TDD list, and then select either Default mode, 
VCO mode, or HCO mode.
5 Press OK. A keyboard icon appears at the top of your Today 
screen whenever TTY is enabled.
To disable TTY, repeat steps 1 and 2.










