Tools94Scroll to an authority certificate, and select Options >Trust settings. Depending on the certificate, applicationsthat can use the selected certificate are as follows:Symbian installation: Yes—The certificate is able to certifythe origin of a new Symbian operating system application.Internet: Yes—The certificate is able to certify servers.App. installation: Yes—The certificate is able to certifythe origin of a new Java application.Online certif. check—Select to check the onlinecertificates before installing an application.Select Options > Edit trust setting to change the value.Call forwardingCall forwarding allows you to forward your incomingcalls. For details, contact your service provider.1 Select Menu > Tools > Settings > Call forwarding.2 Select the desired forwarding option. To forward callswhen your number is busy or when you rejectincoming calls, select If busy.3 Set the forwarding option on (Activate) or off(Cancel), or check whether the option is activated(Check status). Several forwarding options can beactive at the same time.When all calls are forwarded, is shown in thestandby mode.Call restrictions and call forwarding cannot be active atthe same time.Call restrictionCall restriction (network service) allows you to restrict thecalls that you make or receive with the phone. To changethe settings, you need the barring password from yourservice provider. Select the desired barring option, and setit on (Activate) or off (Cancel), or check whether theoption is active (Check status). Call restriction affects allcalls, including data calls.Call restriction and Call forwarding cannot be active atthe same time.When calls are restricted, calls still may be possible tocertain official emergency numbers.NetworkOperator selection—Select Automatic to set the phone tosearch for and select one of the available networks, orManual to manually select the network from a list ofnetworks. If the connection to the manually selectednetwork is lost, the phone sounds an error tone and asks