Motorola i885 Telus User Manual page 219

Using a Remote PTT Button
For phone calls, use the remote PTT button to
answer calls, switch between calls, and end calls.
Hold the remote PTT button for less than 2
seconds to answer calls and switch between calls.
Hold the remote PTT button for more than 2
seconds to end calls.
For Private calls and group calls, use the remote
PTT button as you would the PTT button on your
handset.
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