Phone Calls from inside CERN

• To make international phone calls use the one of the following prefixes. Different countries require a different number - try until you find one that works.
  • 0-0840-922-922
  • 0-0840-933-933
  • 0-0840-944-944
• Calls to French border area
  • 10 + number

Send an SMS from CERN email account

• Send email to Number@sms.switch.ch with international dialing prefix 00 (for example 0041765654808@sms.switch.ch )
• Body of email is text of SMS
• Note that this only works from a CERN email accout
• More info here