Respond to a callback requestWhen someone sends you a callback request, Callback request received isdisplayed in the standby mode. To open the Callback inbox, select View. Thelist of nicknames of the persons who have sent you callback requests is shown.To make a one-to-one call, select the desired request, and press and hold thePTT (volume up) key.Add a one-to-one contactYou can save the names of persons to whom you often make one-to-one callsin the following ways:• To add a PTT address to a name in Contacts, search for the desired contact,and select Details > Options > Add detail > PTT address. A contact appearsin the PTT contact list only if you enter a PTT address.• To add a contact to the PTT contacts list, select Menu > Push to talk >Contacts list > Options > Add contact.• To add a contact from the channel list, connect to the PTT service, selectChannel list, and scroll to the desired channel. Select Members, scroll to themember whose contact information you want to save, and select Options.• To add a new contact, select Save as. To add a PTT address to a name inContacts, select Add to contact.PTT settingsSelect Menu > Push to talk > PTT settings and from the following options:• 1 to 1 calls — Select On to allow the reception of incoming one-to-one calls.To set the device to first notify you of incoming one-to-one calls with aringing tone, select Notify.• PTT key def. function — to set the PTT (volume up) key to one of thefollowing functions: Open contact list, Open channel list, or Call contactor group. Select a contact, a group, or Call PTT channel; and select a channel.When you press and hold the PTT (volume up) key, the selected function isperformed.P u s h t o t a l k74