CENPA subscribes to a conference telephone bridge from the University of Washington. This bridge provides a toll-free number for callers to dial. Call-in information and reservations are available from the CENPA reservations page at http://www.npl.washington.edu/reservations.
If several people from CENPA will be on the same call, you may want to reserve a conference room. See Conference rooms for a description of the CENPA facilities. Conference rooms have triangular SoundStation telephones, equipped with number pads and multidirectional microphones. A green light indicates that the telephone is connected to the line and that the microphones are ready. A red light indicates that you have muted the microphones and you will not be heard on the line.