84Respond to a callback requestWhen someone sends you a callback request, 1 new callback request is displayedin the standby mode. Select Show to open Callback inbox. Scroll to a contact, andpress the push to talk key.ChannelsWhen you are connected to a channel, all members joined to the channel hear youtalking. Up to five channels can be active at the same time. When more than onechannel is active, select Swap to change the channel you want to talk to.Each member in the channel is identified by a user name given by the serviceprovider. Channel members can choose a nickname for within each channel,which is shown as a caller identification.Channels are registered with a URL address. One user registers the channel URL inthe network by joining the channel the first time.Create your own channel1. Select Options > PTT channels.2. Select Options > New channel > Create new.3. Enter a Channel name.4. Select a Channel privacy level.5. Enter your own nickname in Nickname in channel.6. If you want to add a thumbnail image to the group, select Channel thumbnail,and select an image.7. Select Done. When you have created a channel, you are asked if you want tosend channel invitations. Channel invitations are text messages.Join a preconfigured channelA preconfigured channel is a talk group that is set up by your service provider.Only preconfigured users are allowed to join and use the channel. When you joinan existing channel, you must fill in a URL for the channel.For channel detail information, contact your network operator or service provider.You may receive the details in a text message.1. Select Options > PTT channels.2. Select Options > New channel > Add existing.