Everything you always wanted to know about…

…CERN’s new mobile operatorPeter JURCSO BE-CO-IN

Why to change now?• CERN regularly re-tendering service contracts to

have the “Best value for money”

• Call for tender for new mobile operator was launched in 2014 after 8 years with Sunrise

• Contract with new provider approved by Finance Committee in December 2014

• 4 years initial contract with optional extensions up to 16 years for mobile voice and data services

Swisscom• Improved mobile services

• LTE (4G) available on Swiss side• UMTS (3G) and LTE (4G) under authorization for French side• UMTS (3G) and LTE (4G) in the underground facilities

up to 150Mbps download speed in LHC experimental areas

• New tariffs:• ~ 50% cost reduction in average• Significantly cheaper data roaming

• New SIM cards and new numbers

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Network migration challenges• The network must be installed while operating the current one:

• New space, fibers & power supplies required in all sites• New mast/antennae for outdoor coverage

• The complexity of the network :• 2G, 3G and 4G in all sites• 14 outdoor & 37 indoor sites• 17 CERN indoor sites in the LHC (REs & TI8)

• Advanced services must be integrated:• Roaming control, switch board interconnection…

• Regulation and legal permits in two countries• The new network will be ready by 1st of June

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Outdoor (14 installations)• Meyrin (3 sites):

• Building 60• Water tower• Building 361 (PS)

• Prevessin (2 sites):• Building 866• Building 887

• SPS (1 site):• BB4

• LHC (8 sites)• SD2, 4, 5, 6, 7, 8• SZ33• SDX1

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Indoor and underground (54)• LHC:

• 9 sites on the surface covering the lifts and caverns• 16 CERN sites in the REs covering the tunnel• SCX5

• Transfer lines :• 1 sites covering TI2 and 1 CERN site covering TI8

• SPS (8 sites)• Meyrin:

• PS, AD, LINAC3, LINAC 4, N_TOF, CFT3, ISR, DIRAC, ISOLDE• Buildings 358, 2013, 839

• Prevessin:• North area, building 911

• SM18 (1 site)• Transmission:

• Buildings 58, 513, 874

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Migration• New number range: +41 75 411 xxxx

• 16xxxx will not change

• You are responsible to inform your outside contacts and update your websites, databases, applications, documentation etc.

• SIM cards distributed from 1st of June• In 774-1-032 as already confirmed by email• Same size as your current one

(mini/micro or nano)

• Activation of cards on 15th of June• to be able to test them with your phone

Change of SIM cards on 24th of June at 09:00

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Service update schedule• 23 June 17:30-23:00

• Foundation database, Active directoryLDAP, XLDAP, CSDB (landb)

• 24 June 0:00-3:00• Lync and Exchange servers, Service Now

• 24 June 8:30-9:00• E-groups using mail2sms gateway, phonebook• Switchboard for 16xxxx• EDH, CET, HRT, HR databases

• 24 June after 9:00• Mobicall, DIAMON notifications, LASER• Spectrum, ODM, CSAM, BAAN

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After the migration• Update your contacts by using the web tool

https://cern.ch/resources/Manage/EMail/gsmmigration.aspx

Attention! Do not use it before the migration: no roll back possible!

• From 24th June 12:00 until 31st August• Old numbers will be redirected to an automatic message informing

the caller on the new number• Impossible to inform SMS senders!

• 1st of July: Sunrise equipment switched off• Expect loss of Sunrise coverage in Pays de Gex:

consider to change your private subscriptions

• Private option temporary will be unavailable on Swisscom network

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Mail2sms gateway change• Only the international format will be accepted (which can be

already used):

+fullnumber@mail2sms.cern.ch

16xxxx -> +4175411xxxx@mail2sms.cern.ch

Check your applications and databases!

• E-groups containing mail2sms addresses will be automatically converted

• SMS will contain the first 160 chars of:Sender_address + space + Email_subject + space + Email_body

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Unchanged after the migration• Short16xxxx numbers

• Subscription type (professional/private)

• Calling privileges (outside calls, roaming)

• Mail2sms with full international number

04/19/23 Document reference 13

Summary: Important dates• 1 June

• Start of SIM card distribution

• 15 June• Activation of SIM cards

• 24 June: Migration day• 9:00 change of SIM cards• 12:00 no more incoming calls on the old number

• 1 July• Sunrise equipment switched off

• 31 August• End of number new number announcement on the old numbers

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Additional information• https://gsm-migration.web.cern.ch/