Chat and Voice restrictions:

With Free to Play, there are some limitations placed on in-game text and voice chat, based on an account's access level:

• Legendary: Unlimited text and voice chat 
• Premium: 6 text chat messages within 30 seconds, proximity (local) voice chat 
• Free: 6 text chat messages within 30 seconds, no voice chat 

These limits can only be changed by upgrading your access level: there are no upgrades through the Marketplace that would allow for additional chat functionality.