device generates a distinct audio tone for every supported character, and these tones are decoded and converted back into text on the receiving TTY device.
Due to the use of audio compression codecs in modern digital cellular telephones, these TTY audio tones may be unintentionally distorted while being transmitted through cellular telephones. In order for TTY devices to continue to work in cellular networks, the cellular telephone must be set into a mode that optimizes the compression codec to handle TTY tones instead of the human voice.
NOTE: For information on connecting TTY devices to the HP iPAQ, refer to the TTY device manufacturer’s documentation.
Enabling TTY Support
Before connecting the optional TTY device to the phone, you must enable TTY support in order to prepare the HP iPAQ Phone to expect a TTY device to be connected.
To enable TTY support:
1.From the Start menu, tap Phone > Tools > Options > TTY tab.
2.Place a checkmark in the Enable TTY support box by tapping it.
3.Tap OK. The TTY icon displays in the Navigation bar when it is enabled.
4.Connect the optional TTY device or plug into the headphones as stated in the TTY manufacturer’s documentation and connect the headphones to the HP iPAQ. This connection activates the TTY audio mode.
Making a Phone Call Using the TTY HP iPAQ
To make a phone call:
1.Press the green Answer/Send phone button on the front of the HP iPAQ to launch the phone keypad.
Using the Phone Features