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.
93
.
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.