120
Access point—Only visible if Internet is selected as Data bearer. Select an 
access point you want to use for the data connection.
Allow sync requests > Yes—to allow that the server starts the synchronization
Accept all sync requests > No—to require a confirmation before the server 
starts the synchronization
Network authentication—Only visible if Internet is selected as Data bearer. 
To use HTTPS authentication, select Yes, and enter user name and password 
in Network user name and Network password.
Synchronize data
In the main view, scroll to a profile, and select Options > Synchronize. The 
status of the synchronization is shown.
After synchronization is complete, select Options > View log to open a log 
file showing the synchronization status (Complete or Incomplete) and how 
many calendar or contact entries have been added, updated, deleted, or 
discarded (not synchronized) in the phone or on the server.
■ Push to talk
Push to talk (PTT) (network service) is a real-time voice over IP service 
(network service) available over a GSM/GPRS network. PTT provides direct 
voice communication connected with a single keypress.
Before you can use the PTT service, you must define the PTT access point and 
PTT settings.
In PTT communication, one person talks while the others listen. Speakers take 
turns responding to each other. Only one group member can talk at a time. 
The length of time of each turn is limited.
Phone calls always take priority over PTT calls.