When you call a group, all members joined to the group hear the call at the same time. Each member of the group is identified by a nickname, which is shown as a caller identification. Group members can choose a nickname for themselves in each group.

To create a group for push to talk, complete the following steps.

Groups are registered with a URL address. One user registers the group URL in the network by joining the group session the first time.

There are three types of push to talk groups:

• groups are closed groups that allow only selected
  participants provisioned by the service provider to join in the groups.
• Ad hoc groups are groups that the users can create. You can create your own group, and invite members to the group.
• Ad hoc pro groups allow you to create your own group from members in a provisioned group.