BlackBerry 9720 - About TTY support

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About TTY support

When you turn on TTY support and you connect your BlackBerry smartphone to a TTY device that operates at 45.45 bits

per second, you can make calls to and receive calls from TTY devices. Your smartphone is designed to convert received

calls to text that you can read on your TTY device.
If your TTY device is designed for use with a 2.5-mm headset jack, you must use an adapter accessory to connect your TTY

device to your smartphone. To get an adapter accessory that Research In Motion has approved for use with your

smartphone, visit

www.shopblackberry.com

.