VOIP Session Notes

VOIP or Voice over Internet Protocol, IP Telephony, Internet telephony, Broadband telephony, Broadband Phone and Voice over Broadband is a way of routing voice conversations (talking on the phone) over the Internet or through any other IP-based network.

Typical Applications for making VOIP Calls

Skype
Skype was founded in 2003 by Niklas Zennström and Janus Friis. With Skype you can talk to anyone, anywhere. And if you are both on Skype, it’s free.
It is available in 27 languages and is used in almost every country around the world. They generate revenue through its premium offerings such as making and receiving calls to and from landline and mobile phones, as well as voicemail and call forwarding.

Other features
You can send SMS messages, see who you are calling and be seen with video calling, chat with IM instant messaging.

Free Features
• Calling other people on Skype
• Video calls on Skype
• One-to-one and group chats
• Conference calls with up to 5 people
• Forwarding calls to other Skype names

Sipgate

• Sipgate is a free Internet telephone service provider.
• Sipgate is like a fixed line ...
• Real phone numbers across the country
• Conversations in perfect ISDN quality
• Call to and from every telephone in the world

No need for the PC, just use your normal phone

Usability features

• Calls from 0 p/min
• No basic costs, no setup costs, no minimum balance
• Comfort & functionality i.e. voicemail service, itemised billing entries, calls list
• Additional possibilites: Calling from your PC with free software from sipgate
• Useable from almost any broadband connection in the world

http://en.wikipedia.org/wiki/VoIP
http://en.wikipedia.org/wiki/Comparison_of_VoIP_software
http://en.wikipedia.org/wiki/Skype
http://en.wikipedia.org/wiki/VoIP_Providers
http://en.wikipedia.org/wiki/Mobile_VoIP
http://blog.voipally.com/2006/07/25/wifi-phones-for-skype-and-sip-available-now-but-be-careful-what-you-buy/
http://www.whitedust.net/article/30/VoIP%20Security:%20Uncovered/
http://www.skype.com/intl/en-gb/helloagain.html

session six: doug englebart & Ted Nelson

Dr. Douglas C. Engelbart is an American inventer of German descent who is best known as the as the inventor of the computer mouse, alongside Bill English.

Engelbart reasoned that the state of our current technology controls our ability to manipulate information, and that fact in turn will control our ability to develop new, improved technologies. He thus set himself to the revolutionary task of developing computer-based technologies for manipulating information directly, and also to improve individual and group processes for knowledge-work. Engelbart's philosophy and research agenda is most clearly and directly expressed in the 1962 research report which Engelbart refers to as his 'bible':Augmenting Human Intellect: A conceptual Framework. The concept of network augmented intelligence is attributed to Engelbart based on this pioneering work.

Theodor Holm Nelson is an American sociologist, self styled philosopher , and pioneer of information technology. He coined the term "hypertext" in 1963 and published it in 1965. He also is credited with first use of the words hypermedia, transclusion, virtuality, intertwingularity and teledildonics. The main thrust of his work has been to make computers easily accessible to ordinary people. His motto is:

A user interface should be so simple that a beginner in an emergency can understand it within ten seconds.

Ted Nelson promotes four maxims: "most people are fools, most authority is malignant, God does not exist, and everything is wrong".

Nelson founded Project Xanadu in 1960 with the goal of creating a computer network with a simple user interface. The effort is documented in his 1974 book Computer Lib/Dream Machines and the 1981 Literary Machines. Much of his adult life has been devoted to working on Xanadu and advocating it, dispite the fact that vit has failed to flourish.

http://dfim-ccs.blogspot.com/2006/11/session-six-doug-englebart-ted-nelson.html
http://dfim-ccs.blogspot.com/2006/11/seminar-six-englebart-nelson.html
Watched Ted Nelson movie interview - Maverick - Rows and Columns - Article in Scientific America (Cosmology for the computer era) - Xerox Park mentality 74/76 - in California developed Doug Engleberts ideas, resarch and developments lab - Zig zag simple programming language - Failed Zanadoo project article in wired - Ted Nelson ADD Attention Deficiency Disorder - MOMEX System.

Session 7 VIOP
http://dfim-ccs.blogspot.com/2006/11/session-7-voip-voice-over-ip.html