Tools15If several applications are open and you want to switchfrom one application to another, press and hold .Make a one-to-one callSelect Options > Contacts.Select the contact to whom you want to talk from the list,and select Options > Talk 1 to 1.Press and hold the entire time you are talking. Whenyou have finished talking, release .To talk to the contact in other views in PTT (for example,the contacts view), press and hold . To make a newphone call, end the one-to-one call. Select Disconnect, orpress .Tip! Remember to hold the device in front of youduring a PTT call so you can see the display. Speaktowards the microphone, and do not cover theloudspeaker with your hands.Answer a one-to-one callTo start a one-to-one call, press . To dismiss the call,press .Tip! To make a one-to-one or group call fromcontacts, select Options > PTT options > Talk 1 to 1or Talk to many.Make a group callTo call a group, select Options > Contacts, mark thecontacts you want to call, and select Options > Talk tomany.Subscribe to login status of othersTo subscribe or unsubscribe to the PTT login status ofothers, select Options > Contacts, the contact, andOptions > Show login status or Hide login status.Send a callback requestIn Contacts, scroll to the desired name, and selectOptions > Send callback request.Respond to a callback requestWhen someone sends you a callback request, 1 newcallback request is displayed in standby mode. SelectShow > Callback inbox. To start a one-to-one call, selecta contact and Options > Talk 1 to 1.ChannelsYou can join public preconfigured channels. Publicchannels are open to anyone who knows the URL for thechannel.