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Instant Communication Solution

Instant Communication Solution. Lee Pok Man, Pokman 1155030829 Chow Kai Kwong , Light 1155029621 Cheng Ngai Mau, David 1155030755 Lei Chon Pang, Tommy 1155031709 Wong Chi Chung, Johnny 1155030624 Lam King Chun, Benny 1155020599. Introduction. Solution for a Businessman

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Instant Communication Solution

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  1. Instant Communication Solution

    Lee Pok Man, Pokman 1155030829 Chow Kai Kwong, Light 1155029621 Cheng Ngai Mau, David 1155030755 Lei Chon Pang, Tommy 1155031709 Wong Chi Chung, Johnny 1155030624 Lam King Chun, Benny 1155020599
  2. Introduction Solution for a Businessman Travel around the world Keep contact with staffs Tool : Smart Phone, Laptops Types: Phone Call, Video Call, Messages

  3. (Data) Roaming

    a traveling wireless device (typically a cell phone) is kept connected to a network without breaking the connection →using a visited network

  4. (Data) Roaming

    If you travel beyond of your cell phone company's transmitter range, your cell phone would automatically hop onto another phone company's service, if available.

  5. Idea of roaming

  6. Roaming Call

    e.g I travelled abroad for my businessand I need to call my partner who are in Hong Kong. I should call: +852 12345678 where 852 is the area code for Hong Kong

  7. International Direct Dialing (IDD)

    Also called previously: International Subscriber Dialing (ISD) Process of an international telephone call being placed by the caller (the subscriber) rather than by an operator

  8. How to call by IDD?

    e.g You are now in Hong Kong and you try to call your friend in Beijing, China. Assume you are using the PCCW phone service with IDD activated. You should call: 0060 - 86 - 10 - 12345678 PCCW code Country code Area code For mobile phone: (11 digits) 0060 - 86 - 13100000000

  9. How to find the prefix code?

    Demo
  10. Difference between IDD and Roaming e.g I call to Beijing, China with IDD no:0060 86 10 12345678 I am in Beijing, China and I call back to Hong Kong by roaming: +852 24823814
  11. 3G/4G G – generation 3G = 3rd generation of mobile telecommunications technology IMT-2000 (International Mobile Telecommunications-2000) Standard set by ITU (International Telecommunication Union)
  12. 3G/4G IMT – 2000: On travelling car : 144Kbps Outdoor : 384Kbps Indoor : 2Mbps 4G: In addition to usual voice and other services of 3G system, provides mobile ultra-broadband Internet access
  13. Wifi in foreign countries? Price?

    Wifi

    Security?

  14. I: Wifi in foreign countries?

  15. 1. Free Wifi Hotspot
  16. 2. Free / Cheap Wifi Card Hotspots are still needed!!
  17. 3. Free Wifi provider
  18. 4. Wifidata card / USB
  19. 5. PocketWifi / Mi-Fi

  20. II: Price?

  21. Wifi Card / SIM card with Wifi Really depends on the duration of usage Some have fixed price... Straight Talk Unlimited* Text, Talk and Web Access 30-Day Service Card (Email Delivery) USD $45 HKD $349.092 Hong Kong Tourist SIM CardWith unlimited internet access through PCCW • 5-Day Pass HK$69• 8-Day Pass HK$96
  22. Wifi Card / SIM card with Wifi …while some of them depends on the data consumption http://www.worldsim.com/videos/Data_roaming_consumption_from_the_holiday_maker_to.mp4
  23. Wifi Card / SIM card with Wifi …so if your boss is a careless one… HKD 2.3273 (USD 0.3) per MB in China * 3.65 GB = HKD $ 8698.51648 EVERY DAY!
  24. PocketWifi / Mi-Fi Relative high if you are staying for a long period, but reasonable Fixed price for rental, plus price for additional days if you want to extend the period Non-Europe Average: $70 per day + $500 Deposits for at least 3 to 5 days Europe: $120 / $160 per day + $500 Deposits for at least 5 days THB 300 (HKD 71.9407) per day + THB 2000 (HKD 479.6044) deposits JPY 870 (HKD 65.3129) per day + JPY 2000 (HKD 150.1447) for extra days
  25. Case Study Say boss wants to stay in USA for a month 30 MB used per day as shown in the video USD 0.12 (HKD 0.9309) per MB for SIM card with internet access, worth EUR 39.99 (HKD 427.8956) 0.9309*30 *30 + 427.8956 = HKD 1265.7056 Mi-fi rental for 150 MB per day for EUR 4.50 (HKD 48.1503) per day by Tep Wireless 48.1503 *30 = HKD 1444.509

  26. III: Security?

  27. Security Numerous ways of hacking! Your network (Mi-Fi) VS Others network (free Wifi) Password? WEP / WPA MAC spoofing! Denial-of-Service attack Breaking of WPA already exists
  28. When we use mobile app? On the street Don't have PC or laptop with you
  29. Criteria (Weighting) Security (3) Feature (2) Price (2) Platform (1) Popularity/Number of active users (1) *3 means the largest weight, while 1 is the smallest
  30. Platform iPhone Android BlackBerry Nokia Window Phone
  31. Compare WhatsApp WeChat Skype BlackBerry Enterprise Instant Messaging
  32. WhatsApp Multi-platform 400 million monthly active users Feature messaging, group chat, unlimited images, video and audio media messages. Free of charge Messages are encrypted
  33. WeChat Multi-platform 355 million monthly active users Feature sending voice, video, photo and text messages. group chat Provide chat history backup Free of charge Encryption? (Not stated)
  34. Skype Multi-platform 299 million monthly active users Feature Free face to face video and voice calls Low cost calls to mobiles and landlines Send and receive instant messages for free Video messaging Have both free and paid version Messages are encrypted
  35. BlackBerry Enterprise Instant Messaging Only available on BlackBerry No available data on active users Feature  real-time one-to-one and multi-party instant messaging. Need to purchase BlackBerry Enterprise Service or BlackBerry Enterprise Server High Security Data encryption BlackBerry® Enterprise Service security
  36. When we use PC Assumed stable and fast Internet Connection Situations: - Document sharing - Meeting Compare Criterion - Price - Security - Number of Users - Extra Support
  37. PC communication Tool Skype ooVoo
  38. Common Function
  39. Paid Plan *Skype provide monthly plan which can lower cost
  40. Security ooVoo does not provide encryption Skype provides end-to-end encryption. Noted that Skype in China has agreed “Internet censorship in the People's Republic of China”.
  41. Number of Users At the end of 2013 85 million 700 million
  42. Extra Support ooVoo Skype Connected to Hotmail & Facbook Customer Service Call recording Customer Service
  43. Conclusion

  44. Extreme cases

  45. Internet censorship Some countries may have Internet censorship, i.e. control or suppression of what can be accessed, published or viewed on the Internet E.g. China, North Korea have imposed serious Internet censorship China: ‘The world’s biggest prison for netizens’ by the Paris-based Reporters Without Borders
  46. Current methods IP blocking URL filtering VPN blocking etc…
  47. Targeted content Some website with certain keywords Search engines that certain keywords cannot be searched social media websites (Facebook, Twitter…)
  48. Problems Even the text messages on Skype are being monitored Facebook can neither be used in China, so cannot use Facebook Messenger Other countries may have similar censorship But the degree of that may not be as severe as those in China or North Korea
  49. Observation
  50. Observation According to the trend, Asian countries impose more severe Internet censorship while the developed countries have less strict censorship
  51. Mobile phone with limited local data usage Different service plans have different local data usage, depending on the preference of the users
  52. Take China Mobile’s 4G plan in HK as an example
  53. Mobile phone with limited local data usage Beyond the limit of local data usage, extra fees will be charged Suggestion: better use Wi-fi to surf the Internet if there is Wi-fi network being covered Regularly check the data usage to see if it is close to the data limit. Or simply subscribe to the unlimited plan provided by mobile network service providers
  54. Solution Needs? Constraints?
  55. Needs Needs Suggestion For all needs: Skype For text only: WhatsApp Text Voice messaging Video messaging File transfer Multi-person conference
  56. Constraints Network Wi-Fi? 3G? 4G? Device Computer? Phone? Apple? Android? Blackberry? Blocked internet access Go to China?
  57. Solution 1.Wi-Fi + PC + Skype For countries have free Wi-Fi in public place 2.Wi-Fi + Mobile phone + Skype For countries have free Wi-Fi in public place For computer is unavailable or urgent call
  58. Alternatives 3. 3G/4G/USB Modem + PC + Skype 3G/4G/USB Modem + Mobile phone + Skype For Wi-Fi is not secure or not available 4. Long distance call For file transfer and multi-person conference not required For mobile data cost is higher
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