F2PAddon

F2PAddon can be downloaded from curse.com.

Its features include:

• Chat between all users of the addon on the same server.
• Forming groups with other Starter Edition players, by way of requesting invites from channel users with full accounts.
• Sharing player's character data, and building up a database of all the players who your addon has seen in the chat channel, in order to provide tooltips showing who a player's alts are.

How chat channels work without F2PAddon:

In this example we have a Starter Edition account, and two Subscribed Accounts.

How chat channels work with F2PAddon:

In this example we now have two Starter Edition accounts, as well as two Subscribed Accounts. Both Starter Edition accounts and one of the Subscribed Accounts have F2PAddon installed.

F2PAddon is effectively intercepting messages before they get sent to the chat channel, and routing them to other players with F2PAddon by using an addon-to-addon data channel that is not blocked for trials.

Note that the subscribed player without the addon cannot see any messages from the Starter Edition accounts, as the addon is needed to display messages from the addon channel.