Tuesday, October 2, 2012

History of the Integration of Mobile Phones

History of the Mobile Phone


lIn 1970 Amos Joel of Bell Labs invented "call handoff" that allowed a mobile phone user to travel through several cells during the same conversation
lMartin Cooper of Motorola is widely considered to be the inventor of the first practical mobile phone for handheld use in a non-vehicle setting
lUsing a modern, if somewhat heavy portable handset, Cooper made the first call on a handheld mobile phone on April 3, 1973
lFully automatic cellular networks were first introduced in the early to mid-1980s (the 1G generation)
lUntil the late 1980s, most mobile phones were too large to be carried in a jacket pocket, so they were usually permanently installed in vehicles as car phones

SMS (Short Message System)

lSMS was being considered as a feature for mobile phones as early as 1985
lThe first commercial text message wasn't sent until 1992 from a personal computer to a mobile phone
lThe first phone to phone SMS was claimed to have been sent by Riku Pihkonen, an engineering student at Nokia, in 1993.
lInitial growth was slow, with customers in 1995 sending on average only 0.4 messages per GSM customer per month
lA whole new alphabet emerged because SMS messages took a long time to enter and were quite abrupt as people attempted to say as much as possible with as few keystrokes. Abbreviations such as 'C U L8er' for 'See you later' sprung up for time saving and trendiness

Ringtones


lIt all more or less started with the famous 'Nokia Tune', which is a 13 note rendering of Francisco Tarrega's masterpiece, Gran Vals. Tarrega was a 19th-century Spanish musician.
lAround this time all ringtones were monoponic, meaning they could only play one note at a time.
lOne of the first commercial ringtone service available was the finnish operator, Radiolinja´s "jukebox" service in 1999.
lThe year 2002 is a major milestone in ringtone history. Nokia and other phone companies adopted the MIDI standard that enabled richer and more realistic polyphonic sounds, which is multiple notes being played at one time.
lModern mobile phones can play MP3 files and have higher quality ringtones than ever before.


Camera Phone


lA camera phone is a mobile phone which has a camera built-in and allows the user to share pictures and video with anyone instantly.
lThe first complete camera phone was built by Philippe Kahn in 1997. The first commercial camera phone complete with infrastructure was the J-SH04, made by Sharp Corporation with the Sha-Mail (Picture-Mail in Japanese) infrastructure and marketed by J-Phone in Japan.  In North America, the first camera phone was manufactured by Sanyo and launched by Sprint with the PictureMail infrastructure.
Camera phones have become widely used because they are cheap, convenient, and portable, and are now a staple of the majority of cell phones.

Bluetooth


l1998 The Bluetooth Special Interest Group (SIG) is formed and officially adopts the project name “Bluetooth” as the name of the technology
l1999 The Bluetooth 1.0 is released
l2000 The first Bluetooth consumer product hits the market - a Bluetooth headset and phone adapter from Ericsson
lBluetooth wireless technology is a short-range communications technology intended to replace the cables connecting portable and/or fixed devices
lBluetooth enables user to have an affordable and easy way to have a hands free experience when using mobile phones.

For More details visit : https://www.msu.edu


Developing Mobile Applications

Agenda
nEmerging mobile services
nLimitations of current technology
nDeveloping mobile applications using Eximius mBaze framework
nBookstore service: an example application

Demand Drivers


nConsumer applications
¨Communication
¨Entertainment
nEnterprise applications
¨Collaboration
¨Integration with Personal Information Management Systems (PIM)
nNew application frontiers
¨More capable devices open new possibilities

Consumer Applications


nMessaging
¨Text messaging is the top data service world wide
¨Driven by convenience and simplicity
¨Users want more
nUse of picture and video messaging significantly increases data traffic
nGame downloads
¨Driven by availability of better devices and increasing familiarity with mobile internet
¨On the phone games are fast, convenient, have nice user interface
nInformation Retrieval
¨From service provider to users
nLocal news/weather/traffic alert subscriptions via text messaging
¨From users to service providers
Surveys, polls, discussions

More details visit: www.wowgao.com

How to Multi-Home

What is Multi-Homing?
 Multi-homing is the process of selecting, provisioning, and installing a redundant connection to the Internet. Could be the same provider, or a different provider.

Why Multi-Home?
Slow is 1,000,000% better than dead. You may be out of bandwidth. And Telco circuits die. Routers die. Providers’ networks fail. Different networks have better performance to different sites.

A Multi-Homed Architecture
 Ideally, take advantage of the opportunity to multi-home to remove all single points of failure in your network. Use - Multiple providers, unless your current provider will let you have cheap backup Multiple routers Multiple telco vendors

Multi-Homed Architecture
Two routers, each with a different WAN connection from a different telco vendor. Use HSRP or VRRP internally to make both routers look like one “virtual” router. Eventually, multiple providers. Upcoming Boardwatch article with configs.

How the Internet Works
Well, it breaks more than it works but when it does work - The Internet is a network of networks. Each network (called Autonomous System) on the Internet announces “routes”, which are lists of the IP addresses of the boxes on their network. You need to be able to send packets *to*, and get packets *from*, everywhere.


 For more details visit www.freedman.net