The device creates a voice tag for each profile. To activate aprofile using a voice command, press and hold the mute keyin the home screen, and say the name of the profile.To change the voice command, select Profiles > Options >Change command.Voice command settingsSelect Menu > Control panel > Phone > Voice comm..To turn off the synthesizer that plays recognized voicecommands in the selected device language, select Options >Settings > Synthesizer > Off.To reset voice recognition learning when the main user of thedevice has changed, select Remove voice adapts..Push to talkSome features may not be available in your region. Pleasecheck the availability with a local operator.Select Menu > Applications > PTT.About push to talkPush to talk (PTT) (network service) is a real-time, voice-over-IP service that uses a GSM or GPRS network. PTT providesdirect voice communication, with the push of a key. Use PTTto have a conversation with one person or with a group ofpeople.Before you can use PTT, you must define the PTT settings(access point, PTT, SIP, XDM, and Presence). You may receivethe settings in a special text message from the serviceprovider that offers the PTT service. You can also use theSettings wizard application to configure PTT, if supported byyour service provider. For more information on the PTTapplication, see the user guide for your device or your localNokia website.In PTT communication, one person talks while the otherslisten through the built-in loudspeaker.Warning: Do not hold the device near your ear whenthe loudspeaker is in use, because the volume may beextremely loud.Speakers take turns responding to each other. Because onlyone group member can talk at any time, the maximumduration of a speech turn is limited. The maximum durationis usually set to 30 seconds. For details of the speech turnduration for your network, contact your service provider.Phone calls always take priority over push to talk activities.Log in and exit PTTWhen you start the push to talk (PTT) service, you areautomatically logged in and connected to the channels thatwere active the last time you closed the application. If theconnection fails, to attempt to log in again, select Options >Log in to PTT.To exit PTT, select Options > Exit.Phone© 2008 Nokia. All rights reserved.68