Make a push to talk call, Receive a ptt call – AT&T BLACKBERRY 8820 User Manual

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Make a push to talk call, Receive a ptt call | AT&T BLACKBERRY 8820 User Manual | Page 27 / 58 Make a push to talk call, Receive a ptt call | AT&T BLACKBERRY 8820 User Manual | Page 27 / 58
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