|Germany's T-Mobile set to launch PTT service|
Posted: 19-Oct-2004 [Source: T-Mobile]
[PTT arrives next month on T-Mobile's network in Deutschland beginning with the Nokia 5140.]
Push to Talk is likely to be available to T-Mobile customers from the end of November. The first mobile with a Push to Talk button offered by T-Mobile is the Nokia 5140. More models from Nokia and other manufacturers will follow.
With Push to Talk, users can choose whether to "radio" an entire group or just one individual. Subscriber groups can be simply set up from the existing mobile directory. If the group is defined, all it takes is one push of the Push to Talk button to set up a connection to the group members and send a voice message. A status display allows the user to check before sending the message which members of the group have their Push to Talk mobile switched to "receive". As with walkie-talkies, Push to Talk allows only one person to talk while the others listen. To talk to one person only, the user selects that person in the mobile directory and then simply pushes the Push to Talk button to set up the connection.
The new Push to Talk service is based on GPRS technology (General Packet Radio Service) in the T-Mobile network. This gives the service a considerable advantage over other radio technologies, such as walkie-talkies, in that the range of Push to Talk is not locally restricted, since GPRS is available practically everywhere in Germany and also abroad, via T-Mobile's GPRS roaming partners.
In addition to the Nokia 5140, T-Mobile will soon be offering other mobile phone models from Nokia, Samsung, Siemens, and Motorola that support the service. Push to Talk will then work in the T-Mobile network between all devices.
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