 
Respond to a channel invitation
To save a received channel invitation, select
Options
>
Save PTT
channel
. The channel is added to your PTT contacts, channels view. After
you save the channel invitation, you are asked if you want to connect to 
the channel.
If you reject or clear the invitation, the invitation is stored in your 
messaging inbox. To join the channel later, open the invitation message, 
and select 
Options
>
Connect to channel
.