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7.7.10 Re-establishing the factory settings
To re-establish certain menu settings to their original values, select
Menu
>
Settings > Re-establish factory settings. Enter the security code. The
will ensure that the entered or downloaded data such as: the names and
telephone numbers stored in the
Address book are not deleted.
7.8 Push-to-talk
Push-to-talk (PTT) over the mobile wireless network is a two-way data
service, which is available via a GSM/GPRS mobile wireless network. PTT
enables direct voice communication. Connection setup is handled by
pressing the PTT key.
Using PPT, you can conduct calls with one person or a group of persons
who have compatible units. If the connection is established, the person
or group does not need to additionally accept the call. The subscribers
should confirm receipt where applicable, since there is no other type of
confirmation as to whether the recipients have listened to the call.
You can obtain information about the availability and cost of this service
from your network operator or provider, where you can also subscribe
to this service. Roaming services may be more strictly limited than for
normal calls.
Before using the PTT service, you must specify the required PTT service
settings.
During a connection to the PTT service, you can continue to use the other
functions of the telephone. PTT over the mobile wireless network is not
dependent on traditional voice telephony. Because of this, many of the
associated services (e.g. voice mailbox) are not available.
7.8.1 Push-to-talk menu
Select
Menu > Push-to-talk
• To establish or break the connection to the PTT service, select Activate
PTT or
Deactivate PTT.
• To display the call back requests received, select call back inquiries.
• To display the list of PTT groups, select the group list.
• To display the list of dialog partners to whom you have added the PPT
address received from the provider, select the list of calling parties
[participants].
• To create a new PTT group on the telephone, select the group to add.