Short post on TELEconference

Teleconference is the world where you can live exchange and mass articulation of information among persons and machines remote from one another but linked by a telecommunications system, usually over the phone line.
The telecommunications system may support the teleconference to enahance this techique by providing one or more of the following audio, video, and/or data services by one or more means,such as telephone, telegraph, teletype, radio, and television.
Internet Tele-conferenceInternet telephony involves conducting a teleconference over the Internet or a Wide Area Network. One key technology in this area is Voice over Internet Protocol (VOIP). Popular software for personal use includes Skype, Google Talk, Windows Live Messenger and Yahoo Messenger.

Info. On Conference Calls

INTRODUCTION-
A conference call can be explain as a telephone call in which the calling party wishes to have more than one called party listen in to the audio portion of the call. The conference calls may be designed to allow the called party to participate during the call, or the call may be set up so that the called party merely listens into the call and cannot speak. It is often referred to as an ATC (Audio Tele-Conference).
Conference calls can be designed so that the calling party calls the other participants and adds them to the call. In most cases, the participants are able call into the conference call themselves. They do so either:
•by dialing into a "conference bridge" (a specialized type of equipment that connects telephone lines), or
•by using a special telephone number set up for that purpose.
Most companies use a specialized service provider who maintains the conference bridge, or who provides the phone numbers and PIN codes that participants dial to access the meeting or conference call.
Three-way calling is available ( at an extra cost) for most customers on their home or office phone line.How to connect 3-Way Calls- To three way call you call the first person you wish to talk to. Then you must press the flash button and dial the other person's phone number. While it is ringing press flash again. This will put your three people together. This option allows callers to add a second outgoing call to an already connected call
Business Application of Conference callsBusinesses use conference calls daily to meet with remote parties, both internally and outside of their company. Common applications are client meetings or sales presentations, project meetings and updates, regular team meetings, training classes and communication to employees who work in different locations. Conference calling is viewed as a primary means of cutting travel costs and allowing workers to be more productive by not having to go out-of-office for meetings.
Conference calls are used by nearly all United States public corporations to report their quarterly results. These calls usually allow for questions from stock analysts and are called earnings calls. A standard conference call begins with a disclaimer stating that anything said in the duration of the call may be a forward looking statement, and that results may vary significantly. The CEO, CFO, or Investor Relations officer then will read the company's quarterly report. Lastly, the call is opened for questions from analysts.
Conference calls are increasingly used in conjunction with web conferences, where presentations or documents are shared via the internet.
Conference calls are also beginning to cross over into the world of podcasting and social networking, which in turn fosters new kinds of interaction patterns. Live streaming or broadcasting of conference calls allows a larger audience access to the call without dialing in to a bridge. In addition, organizers of conference calls can publish a dial-in number alongside the audio stream, creating potential for audience members to dial in if and when they wish to interact.

Satellite Phone-Elaborated Explaination

How is a satellite phone different from a cellular phone?

Satellite and cellular phones are wireless devices. They almost look alike but the way they work is totally different. A cellular phone functions on the basis of cells, and hence are called cell phones. The whole network area is divided into small areas and an antenna is installed in each area. These are also called towers. When a cellular phone is moving, it enters from one cell to another. When it crosses the border of one cell, the phone sends a signal to the MTSO (Mobile Telephone Switching Office). With the help of control channel the database of the MTSO relocates the phone in a new cell or area. Satellite phones use Low Earth Orbiting (LEO) satellites. When a satellite phone is turned on, a signal goes up to any number of satellites of a group the phone is registered with. When a person makes a call from the handset, a signal goes to the nearest orbiting satellite. The satellite connects to the gateway or ground station. Then the gateway takes the call to the destination.
The main difference is that while your mobile phone communicates with the nearest base
station, a satellite phone communicates with the nearest satellite. With satphone, one
doesn't have to worry about a network connection.Isn't that great friends.
Satphones generally communicate with low earth orbit satellites (LEOs), which are believed to
be faster and give better coverage

Comparision between-Regular cell phone Vs Satphone:

A satphone is much more heavier and bigger than a regular mobile. They also have a large
retractable antenna, which you have to pull out to establish contact with the satellite. They
are very much like the mobiles that were available 15-20 years ago.So be ready to carry an extra bag to load it.

Satellite Phone's merits-First Side of Satelite Phone:

Satphones have come as a big boon for reporters, explorers, archaeologists and the like.
Basically anyone who has to work in remote areas. In the famous TV serial Relic Hunter, the
main character is always connected no matter which remote location in the world she goes to.
That's been the story in real life too. Two explorers Steve Brooks and Quentin Smith were
stranded in a lifeboat in the ice-cold waters of the Antarctic. Steve called his wife via a
satphone (she was in London, more than 12,000 km away). A search operation was organized and they were rescued in 9 hours. A satphone can work anywhere in the world, the only condition is that you need the open sky to establish contact

Satellite Phone's demerits-Hidden side of Satellie Phone

Satphones are very popular with drug lords and terrorists mainly because you can buy satphone in one country and use indefinitely in another. Another reason for its popularity with law-breakers is that they are difficult to trace and tap by the authorities.

It's Status in India-Every Indian Residence check it:

Thuraya, Iridium, Inmarsat and Teledesic are some of the prominent players in satellite phones arena. None of them have entered the Indian market as of now. The concept of satellite
phones, though useful, has not been very successful. However, this is likely to change with
the availability of dual mode handsets that can work on both GSM and satellite network.