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 and data charged |
| Restricted |
|
Connectivity only possible from France:
|
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).