340. Your Old Smartphone’s Data Can Come Back to Haunt You, PCWorld, 11 July 2011: http://www.pcworld.com/article/235276/ your_old_smartphones_data_can_come_back_to_haunt_you.html 341. Statistics That Will Make You Want To Recycle Your Cell Phone, S. C. Johnson and Son, 15 February 2015: http://www. scjohnson.com/en/green-choices/Reduce-and-Recycle/Articles/Article-Details.aspx?date=12-02-15&title=Statistics-That-Will- Make-You-Want-To-Recycle-Your-Cell-Phone 342. The percentage of ‘data exclusives’ for 2012-2015 has been extracted from Deloitte member firms’ Global Mobile Consumer Survey for selected developed markets. The following countries have been considered for 2014 and 2015: Australia, Finland, France, Germany, Italy, Japan, Netherlands, Norway, Singapore, Spain, UK, US. Australia, Italy and Norway did not participate in the 2012 and 2013 editions. Netherlands and Singapore did not participate in the 2012 edition. For more details, see Deloitte member firms’ Global Mobile Consumer Survey: http://www.deloitte.com/gmcs 343. Total Voice Traffic, Ericsson, as accessed on 16 December 2015: http://www.ericsson.com/TET/trafficView/loadBasicEditor. ericsson 344. As of 2015, the time spent on smartphone for activities excluding voice in U.K. has almost tripled from between 2012 to 2015, from 36 minutes in 2012, to 1 hour 31 minutes in 2015. See UK Adults Spend More Time on Mobile Devices than on PCs, eMarketer, 16 April 2015: http://www.emarketer.com/Article/UK-Adults-Spend-More-Time-on-Mobile-Devices-than-on- PCs/1012356#sthash.KheWPuYA.dpuf; Similar trends for US, see Growth of Time Spent on Mobile Devices Slows, eMarketer, 7 October 2015: http://www.emarketer.com/Article/Growth-of-Time-Spent-on-Mobile-Devices-Slows/1013072 345. The percentage of ‘data exclusives’ for 2012-2015 has been extracted from Deloitte member firms’ Global Mobile Consumer Survey for selected developed markets. The following countries have been considered for 2014 and 2015: Australia, Finland, France, Germany, Italy, Japan, Netherlands, Norway, Singapore, Spain, UK. US. Australia, Italy and Norway did not participate in the 2012 and 2013 editions. Netherlands and Singapore did not participate in the 2012 edition. For more details, see Deloitte member firms’ Global Mobile Consumer Survey: http://www.deloitte.com/gmcs 346. For IM volumes in 2012, see OTT messaging traffic will be twice volume of P2P SMS traffic this year, Informa, 30 April 2013: http://informa.com/media/press-releases--news/latest-news/ott-messaging-traffic-will-be-twice-volume-of-p2p-sms-traffic-this- year/#. For IM volumes in 2015, see Instant messaging to overtake email as biggest digital communication platform, V3, 7 July 2015: http://www.v3.co.uk/v3-uk/news/2416558/instant-messaging-to-overtake-email-as-biggest-digital-communication- platform 347. Deloitte Global analysis based on a variety of publicly available information including Summary of RCS and VoLTE Launches, GSMA, as accessed on 11 December 2015: http://www.gsma.com/network2020/summary-of-rcs-and-volte-launches/; VoLTE global status, Evolution to LTE report, Global Mobile Suppliers Association, 13 October 2015: http://www.gsacom.com/ downloads/pdf/Snapshot_VoLTE_extract_GSA_Evolution_to_LTE_report_131015.php4 348. Deloitte Global analysis based on a variety of publicly available information including VoLTE and VoWi-Fi: crucial deployment and assurance considerations for operators, Analysys Mason, 27 February 2015: http://www.analysysmason.com/Research/ Content/Reports/VoLTE-VoWi-Fi-white-paper-Mar2015-RMA01/[requires registration]; Voice over LTE on the Upswing as Availability of VoLTE Capable Devices Grows, IHS, 23 June 2015: http://www.infonetics.com/pr/2015/VoLTE-OTT-Mobile-VoIP- Services.asp; Wi-Fi calling in Europe: EE, Vodafone UK and Three UK take different paths, Fierce Wireless Tech, 18 November 2015: http://www.fiercewireless.com/tech/story/wi-fi-calling-europe-ee-vodafone-uk-and-three-uk-take-different- paths/2015-11-18; Mitel Announces Mobile Enterprise Portfolio for Today’s Mobile-First World, GlobeNewswire, 15 October 2015: http://globenewswire.com/news-release/2015/10/15/776466/10152436/en/Mitel-Announces-Mobile-Enterprise- Portfolio-for-Today-s-Mobile-First-World.html 349. Wi-Fi calling finds its voice, Ericsson, July 2015: http://www.ericsson.com/res/docs/2015/consumerlab/ericsson-consumerlab- wifi-calling-finds-its-voice.pdf 350. 40pc of Brits have mobile blackspot in their home, Mobile News, 16 June 2015: http://www.mobilenewscwp. co.uk/2015/06/16/40pc-of-brits-have-mobile-blackspot-in-their-home/ 351. For a view on the complexity of deploying small cells, see VoLTE and VoWi-Fi: crucial deployment and assurance considerations for operators (page 7), Analysys Mason, 27 February 2015: http://www.analysysmason.com/Research/Content/Reports/VoLTE- VoWi-Fi-white-paper-Mar2015-RMA01/[requires registration] 352. ACG Research: With VoWiFi, it’s all about the economics, Fierce Wireless Tech, 22 October 2015: http://www.fiercewireless. com/tech/story/acg-research-vowifi-its-all-about-economics/2015-10-22 353. For more information on IMS, see IP Multimedia Subsystem, Wikipedia, as accessed on 11 December 2015: https://en.wikipedia.org/wiki/IP_Multimedia_Subsystem 354. See VoLTE and VoWi-Fi: crucial deployment and assurance considerations for operators (page 4), Analysys Mason, 27 February 2015: http://www.analysysmason.com/Research/Content/Reports/VoLTE-VoWi-Fi-white-paper-Mar2015-RMA01/[requires registration] 355. GSMA WELCOMES LAUNCH OF WORLD’S FIRST COMMERCIAL INTERCONNECTED VoLTE SERVICE IN SOUTH KOREA, GSMA, 18 June 2015: http://www.gsma.com/newsroom/press-release/gsma-welcomes-launch-of-worlds-first-commercial- interconnected-volte-service-in-south-korea/ 356. For information on the technology used to handover calls from VoLTE to legacy networks, see SRVCC Single Radio Voice Call Continuity, Radio-Electronics.com: http://www.radio-electronics.com/info/cellulartelecomms/lte-long-term-evolution/srvcc- single-radio-voice-call-continuity.php 357. Deloitte Global has generated this estimate based on data points provided by a range of major social networks, messaging companies, and photograph back-up services. 76