Polycom SoundPoint IP 450 User Guide
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2 From the PTT Channels List screen, select the channel to send the
broadcast on (as shown next).
The list displays the default channel, the most recent channel you sent a
broadcast on, and other channels you can broadcast on.
In the above example, the default channel is 1, the recent channel is 1, and
the Emergency channel is 25.
3 To start the broadcast, press and hold the Talk soft key. (You need to
press the Talk soft key throughout the entire broadcast.)
You’ll hear a ‘transmitting’ beep, and then the phone displays the channel
you are using (‘To:Teachers (Channel 18)’, as shown next).
4 Start talking.
5 When you finish your broadcast, do one of the following:
— Release the Talk soft key. The broadcast temporarily stops and enters
a 10-second waiting period to allow others to reply, or you to resume
the broadcast. If no one responds during a waiting period, the channel
closes and the broadcast ends.
— Press the End PTT soft key. The broadcast temporarily stops and
enters a 10-second waiting period to allow others to reply. If there are
no replies, the channel closes and the braodcast ends. After you tap the
End PTT soft key, you can immediately initiate another broadcast on
another channel, even if the previous broadcast is still in its waiting
period.
If you release the Talk soft key while you’re sending the broadcast, the broadcast
temporarily stops and enters a 10 second ‘Waiting’ period. During this period, the
channel remains open to give people a chance to reply. At any time during the
waiting period, you can resume your broadcast by pressing and holding the Talk
soft key. If no one broadcasts during the waiting period, the channel closes and the
broadcast ends.