Using the Advanced Features of Your Phone

Sending and Receiving PTT Broadcasts

To send and receive PTT broadcasts, you need to subscribe to certain channels. By default, you’re subscribed to Channels 1, 24 (the Priority channel), and

25 (the Emergency channel). This means that:

You can send PTT broadcasts on Channels 1, 24, and 25.

You’ll receive PTT broadcasts sent on Channels 1, 24, and 25.

When you end a PTT broadcast, the channel remains open and enters a waiting period. This waiting period gives people who received the broadcast a chance to respond. If no one responds within the waiting period, the channel closes.

Sending PTT Broadcasts

If you send a PTT broadcast without specifying a channel, it’s automatically transmitted on the default channel. Channel 1 is the default channel that all broadcasts transmit on, if no channel is specified for a broadcast.

You can change your default channel to any channel you want (see Updating the Default Channel on page 64). If you change your default channel, you’ll become subscribed to that channel automatically. To subscribe to a channel, see Updating Channel Subscriptions on page 65).

To send a PTT broadcast:

1Press the Talk soft key to select a channel to broadcast on.

To automatically send a PTT broadcast on the default channel, press and hold the Talk soft key, and then go to step 4.

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Polycom IP 450 manual Sending PTT Broadcasts, Press the Talk soft key to select a channel to broadcast on