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Push to talk
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13. 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. 83.
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, and the name of the default channel
is displayed in the standby mode.
To disconnect from the PTT service, select Switch PTT off.
■ Make and receive a PTT call
Set the phone to use the loudspeaker or earpiece for PTT communication. When
the earpiece is selected, use the phone normally by holding it to your ear.
Warning: Do not hold the device near your ear when the loudspeaker is
in use, because the volume may be extremely loud.