P u s h t o t a l kCopyright © 2006 Nokia. All rights reserved. 67Respond to a callbackrequestWhen you receive a callback request,Callback request received is shown inthe standby mode. Select View. The listof contacts who have sent you callbackrequests is shown.To make a one-to-one call, press thePTT key.To send a call request back to thesender, select Options > Send callback.To delete the request, select Delete.To view the sender's PTT address, selectView.To save a new contact or to add the PTTaddress to a contact, select Options >Save as or Add to contact.■ Add a one-to-onecontactYou can save the names of persons towhom you often make one-to-onecalls in the following ways:• To add a PTT address to a name inContacts, search for the desiredcontact, and select Details >Options > Add detail > Push to talkaddress.• To add a contact to the PTTcontacts list, select Menu > Pushto talk > Contacts list > Options >Add contact.• To add a contact from the channellist, connect to the PTT service,select Channel list, and scroll to thedesired channel. Select Members,scroll to the member whosecontact information you want tosave, and select Options. To add anew contact, select Save as. To adda PTT address to a name inContacts, select Add to contact.■ PTT channelsWhen you call a channel, all membersjoined to the channel hear the callsimultaneously.There are three types of PTT channels:• Provisioned channel — Apermanent channel is created bythe service provider.• Public channel — Every channelmember can invite other persons.• Private channel — Only personswho receive an invitation from thechannel creator can join in.Add a channelTo add a public or private channel,select Menu > Push to talk > Addchannel, and edit the settings in theform fields:Channel status: — Select Active orInactive.Nickname in channel: — Enter yournickname for the channel.