Making a call

Swisscom network:

  1. To a CERN fixed or mobile phone:

Dial the number beginning with 7 or 16 and then press "Call"  or Dial the full international number followed by "Call"
eg.: 7xxxx "Call" (for a CERN internal number)

or: 16xxxx "Call" (for a CERN mobile phone) 

 

eg.: +41 22 767 xxxx (for a CERN internal number) 

or:   +41 75 411 xxxx (for a CERN mobile phone)

  1. Depending on your access authorization, you may call external numbers:

Please be aware that while calls to Switzerland and neighbouring countries (France, Germany, Italy and Austria) are included in the Standard subscription fee (while calling from Switzerland or those countries), calls to other destinations are more expensive.
It is highly recommended to use CERN landlines while calling abroad and/or to use data calls with a softphone solution such as CERNphone mobile app or Skype for Business that enable to use your landline number on your mobile phone.

To any number:

Dial the full international number followed by “Call”, eg.: 

  • +41 79 xxx xx xx (for Switzerland) 
  • +33 xx xx xx xx (for France)
  • +39 ….(for Italy)
  • +1 ….. (for the USA)

While roaming:

To any number:

Dial the full international number followed by “Call”, eg.: 

  • +41 75 411 xx xx (for CERN mobiles)
  • +41 22 76x xx xx (for CERN landlines)
  • +41 79 xxx xx xx (for Switzerland) 
  • +33 xx xx xx xx (for France)
  • +39 ….(for Italy)
  • +1 ….. (for the USA)