Names a role that has permission to subscribe to this channel. More than one role can subscribe to a channel. URL to a 20x20 pixel icon that represents the channel. This example creates a new channel called News on the report server Caligari. The channel description is News you can use.
Items expire out of the channel when they are three days old.
The channel checks for new items every 30 seconds. Users with the role All can subscribe to the channel.