These features can be used at any time during a conference, as many times as you wish, and by any of the conference participants.

• Silent Room Entry
  By default, you join a conference without making a sound. If you are the first person to arrive you will hear music, but everyone else will simply join the conference. This is so you do not disrupt anything already in progress.
• Record Start - #8 (hash eight)
  To start a recording session, simply press #8. You will then be asked to confirm by pressing 1.
• Record Stop - #8 (hash eight) again
  If you do not stop a recording that you have started, the facility will not work! To stop a recording once you've started it, press #8 again. Again you will be asked to confirm that you want to stop the recording by pressing 1 again.
• Mute - 6 (six, no hash required)
  If you are in a noisy location and would like to hear what is being discussed without interrupting, press 6 on your keypad and you will mute your receiver.
• Un-mute - 6 (six, no hash required) again
  Once the noise has passed, simply press 6 on your keypad to un-mute your receiver.
• Lock - 3 (three, no hash required)
  If you do not want to be disturbed, or are discussing sensitive issues, 3 will lock your room so no other callers can dial in.
• Unlock - 3 (three, no hash required) again
  If you want or need to re-open your conference, pressing 3 again will unlock it.
• Head count - #1 (hash one)
  You can check how many people are on a call with you by pressing #1 at any time.
• Roll call - #2 (hash two)
  When you dial in to a conference, you are asked to say your name before being allowed in to a room. #2 will run through the list of recorded names.
• Silent Room Departure
  By default, you will also leave a conference without making a sound after you've hung up. Again, this is so you do not disrupt anything continuing after you leave.