PTT channel types
A PTT channel comprises a group of people (for example, friends or a work team) who
joined the channel after they were invited. When you call a channel, all members joined
to the channel hear the call simultaneously.
In a Public channel, every channel member can invite other persons; in a Private
channel, only the channel creator can invite others.
You can set the status of each channel to Active or Inactive.
The number of active channels and the number of members per channel is limited.
Contact your service provider for details.