Focused and uninterrupted training. The TMA Training Center is located at TMA's headquarters in Tulsa, Oklahoma. The facility is designed for small groups of up to eight. Having a smaller group provides the TMA Trainer or Consultant with the ability to provide a group, or an individual, the special attention they may need. Training at the TMA Training Center allows your group to be totally focused on learning the system and how it can be most effectively utilized by your organization — away from the phones and away from the daily demands being placed on them.