Nokia 5070

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15. 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 and hold the volume up 
(PTT) 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 person or group you are calling does not have to answer the phone. The 
participants should confirm the reception of any communications 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 
 p.
While you are connected to the PTT service, you can use the other functions of the phone. The PTT over cellular 
service is not connected to traditional voice communication, and therefore many of the services available for 
traditional voice calls (for example, voice mailbox) are not available for PTT over cellular communications.
■ Push to talk menu
Select 
Menu
> 
Push to talk
.
To connect to or disconnect from the PTT service, select 
Switch PTT on
 or 
Switch PTT off
.
To view the received callback requests, select 
Callback inbox
.
To view the list of PTT channels, select 
Channel list
.
To view the list of contacts to which you have added the PTT address received from the service provider, select 
Contacts list
.
To add a new PTT channel to the phone, select 
Add channel
.
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