P u s h t o t a l k
12. Push to talk
Push to talk (PTT) over cellular is a two-way radio service available
over a GSM/GPRS cellular network (network service). PTT provides direct voice
communication. To connect, press the volume up key.
You can use PTT to have a conversation with one person or with a group of people
having compatible devices. When your call is connected, the people you are calling
do not have to answer the phone. The participants should confirm the reception of
any communication where appropriate, as there is no other confirmation whether
the recipients have heard the call.
To check availability and costs, and to subscribe to the service, contact your service
provider. 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. 89.
While you are connected to the PTT service, you can use the other functions of
the phone. The PTT service is not connected to traditional voice communication;
therefore many of the services available for traditional voice calls (for example,
voice mailbox) are not available for PTT communication.
■ Connect and disconnect
To connect to the PTT service, select Menu > Push to talk > Switch PTT on.
indicates the PTT connection.
indicates that the service is temporarily
unavailable. The phone automatically tries to reconnect to the service until you
disconnect from the PTT service. If you have added channels to the phone, you are
automatically joined to the active channels.
To disconnect from the PTT service, select Switch PTT off.
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