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101Copyright © 2006 Nokia. All rights reserved.
13. Push to talk
Select Menu > Push to talk.
Push to talk (PTT) over cellular is a two-way radio service available over a GPRS
cellular network (network service).
You can use PTT to have a conversation with one person or with a group of people
having compatible devices. While you are connected to the PTT service, you can
use the other functions of the phone.
To check availability and costs, and to subscribe to the service, contact your
network operator. Roaming services may be more limited than for normal calls.
Before you can use the PTT service, you must define the required PTT service
settings. See PTT settings p. 107 and Configuration settings p. 108.
■ Push to talk channels
When you call a channel, all members joined to the channel hear the call
simultaneously.
There are different types of PTT channels:
Public group — Every channel member can invite other persons.
Private group — Only persons which receive an invitation by the channel creator
can join in.
Provisioned channel — permanent channel created by the service provider