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Subscription changes for CERN mobile phones on 28 November 2019

To reduce costs for data access, especially in the Pays de Gex, and to support e-SIMs so smartphone users whose device is compatible with e-SIM can use a single phone both professionally (with an e-SIM card provided by CERN) and privately (with your own SIM card from your personal mobile phone subscription), mobile telephony subscriptions will change as from 28th November (and not as from 26th November as formerly announced).

There will be a brief outage at the time your profile is migrated. If your telephone blocks, you should restart it. 

Following the change, users with an appropriate phone will also be able to use VoLTE (Voice over LTE) which should improve connectivity in France, and, if there is no mobile phone network connection, to make voice calls over a Wi-Fi connection at CERN or in Switzerland.

The new subscription options are shown below. Users with a “Full” subscription will be migrated to the Standard subscription. Other users will be migrated to the Restricted subscription.

Subscription From Switzerland and tunnels  From Neighbours (FR + IT + DE + AT) From other countries
Standard 
  • Voice included to Switzerland & neighbours
  • Voice to other countries charged
  • Data included 
  • Voice included to Switzerland & neighbours
  • Voice to other countries charged
  • Data: 1.5GB included, then charged
Voice and data charged
Restricted 
  • Voice included to CERN numbers, +4122, +4121 and +33450
  • Voice to other numbers blocked 
  • Data included 

Connectivity only possible from France: 

  • Voice included to CERN numbers, +4122, +4121 and +33450
  • Voice to other numbers blocked
  • No Data 

Voice and data blocked

IMPORTANT NOTE: Voice calls to numbers outside Switzerland and neighbouring countries will be much more expensive than today. It is highly recommended to use CERN landlines when calling abroad or to use data calls with a softphone solution such as Skype for Business (and the soon-to-be-introduced CERN Phone App) that enables you to use your landline number on your mobile phone. 

For further details, please see the following webpage (login required).