About push to talkPush to talk (PTT) (network service) is a real-time voice-over-IP service that uses the cellular network. PTT provides directvoice communication, with the push of a key. Use PTT to havea conversation with one person or with a group of people.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.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.To switch to another open application , press and hold themenu key.Make and receive a PTT callTo make a PTT call, press and hold the call key as long as youtalk. To listen to the response, release the call key.To check the login status of your contacts, in PTT, selectOptions > PTT contacts > Contacts and from thefollowing:• — person available• — person unknown• — person does not want to be disturbed, but canreceive callback request• — person has PTT switched offThis service depends on your network operator and is onlyavailable for subscribed contacts. To subscribe a contact,select Options > Show login status.Make a one-to-one callSelect Options > PTT contacts > Contacts. Select thecontact you want to talk to and Options > Talk 1 to 1. Pressand hold the PTT key the entire time you are talking. Whenyou have finished, release the key.To talk to a contact, press and hold the PTT key also in otherviews in the PTT application, for example, the Contacts view.To make a new phone call, first end the one-to-one call. SelectDisconnect.© 2010 Nokia. All rights reserved. 65