In your in game chat pane on either server which you are on, type /join battlehammer. Next, change the channel text color to a light blue.
To set the color, right click on the General tab on yer chat window, then select settings. Go to Global Channels, and click on the color box for Battlehammer. (Sometime the color box doesn't show and you will need to do this the next time you reboot your game - bug). Use this global chat to keep in touch with Clan Battlehammer across guilds and characters.. and to coordinate with our Allies. This channel is monitored by the guild officers and you can request to speak with one from that channel. If that doesn't work, try typing /who battlehammer for a list of members online and contacting them to put you in touch with a recruiting officer.