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• To set the required settings for the push to talk connection, select 
Configuration settings.
• To open the browser and to connect to the push to talk network portal 
provided by the service provider, select Services.
Connecting to and disconnecting from the push to talk service
To connect to the push to talk service, press Menu, and select Push to talk, and 
Switch PTT on.   indicates the push to talk connection.   indicates that the 
service is temporarily unavailable. The phone automatically tries to reconnect to 
the service until you disconnect from the push to talk service. If you have added 
group(s) to the phone, you are automatically joined to the active (Default or 
Listened) groups, and the name of the default group is displayed in standby mode.
To disconnect from the push to talk service, select Switch PTT off.
Callback requests
If you make a one-to-one call and do not get a response, you can send a request 
for the person to call you back.
When someone sends you a callback request, Callback request received is 
displayed in standby mode. When you receive a callback request from someone 
who is not in your contacts list, you can save the name to your contacts.