Sony Ericsson XPERIA X1

An other technological barrier crossing cell phone lauched by Sony Ericsson
The Model which about i am talking is Sony Ericsson XPERIA X1
It's general Specification includes-

Network-

2G-GSM 850/900/1800/1900

3G-HSDPA 850/1700/1900/2100

It external Technology Envelopes-Sony Ericsson XPERIA X1 has a dimension of 110 x 53 x 16.7 mm and it weights 145 gms.When talking about its display is normally comparable to any other cell phones lauched now a days and it is TFT touchscreen, 65K colors,800 x 480 pixels, 3
inches,Full QWERTY keyboard and special key which differienciate from other is
it's Optical joystick navigation.
Now you can listen to MP3 and polyphonic ringtones

Its Internal Technological view consist-

Memory Card is expandable to 2 GB and it internal memory is owesome 400 MB.

Its efficiency in Data exchange is as follows-

GPRS -Class 10 (4+1/3+2 slots), 32 - 48 kbps

HSCSD- No

EDGE -Yes

3G -HSDPA, 3.6 Mbps

WLAN- Wi-Fi 802.11b/g

Bluetooth Yes, v2.0 with A2DP

Infrared port- No

USB -Yes, v2.0

Its runs on Microsoft Windows Mobile 6.0 Professional (operating system)

Now talking about talking about it s Camera and other features.

I will describe it as-

Camera- 3.2 MP, 2048x1536 pixels, autofocus, video(VGA@30fps), flash; secondary
videocall camera

Addition Features

-A GPS function-

-Java MIDP 2.0

- FM radio with RDS

-MP3/AAC/MPEG4 player

-Motion sensor (with UI auto-rotate)

-TrackID music recognition

- Picture editor/blogging

- Organiser

It is available in two shade-

1)Black 2)Steel Silver

[But Still Indian will Have to wait for this cell phone to lauched in India]

Window Mobile Operating system

Introduction

Windows Mobile is a compact operating system combined with a suite of basic applications for mobile devices based on the Microsoft Win32 API. Devices that run Windows Mobile include Pocket PCs, Smartphones, Portable Media Centers, and on-board computers for certain automobiles. It is designed to be somewhat similar to desktop versions of Windows, feature-wise and aesthetically. Additionally, third-party software development is available for Windows Mobile. Originally appearing as the Pocket PC 2000 operating system, Windows Mobile has been updated several times, with the current version being Windows Mobile 6 and a new release scheduled for 2008.
These Feature r common in Window mobileToday Screen shows the current date, owner information, upcoming appointments, e-mail messages, and tasks. Users can customize the screen by selecting what information they wish to be displayed. It also includes the notification bar, which includes icons to notify the status of Bluetooth, etc. Programs can be installed which adds extra items to the Today screen. One of these is Microsoft Money for Pocket PC. The background image can be customised directly through the Pocket PC, or themes can be created and synchronized onto the Pocket PC. The taskbar shows the current time, the volume, and the connectivity status. When a program or message box is open the blank space after the clock is filled with an OK or close icon. The main feature of the taskbar is the Start Button, which is designed similarly to the Start Button which features on desktop versions of Windows. The Start Menu features recently opened programs at the top, nine customizable menu entries, and links to the program, settings, find (search), and help. Office Mobile a suite of Mobile versions of Microsoft Office applications is included in Windows Mobile. It includes Word Mobile, Excel Mobile and PowerPoint Mobile (included since Windows Mobile 5.0). These versions include many of the features which are used in desktop versions, but some other features like inserting tables and images have not been included in pre 5.0 versions. ActiveSync has capabilities which convert desktop versions of files to Office Mobile compatible versions. Outlook mobile comes with Windows Mobile. This includes tasks, calendar, contacts, and inbox that can be sync'ed either with Outlook or direct with an Exchange Server (internet connection is required for this method). POP3 or IMAP4 access can also be used. Microsoft Outlook for desktop versions is sometimes included in a value-added CD-ROM which is included with the Pocket PC hardware manufacturer. Windows Media Player for Windows Mobile is bundled with the Windows Mobile software. Currently, all new Windows Mobile 6 Devices include Version 10.3 (Build 18123) of the player. For Older devices, Version 10 is available for download for only specified devices — these include devices from the Dell Axim range. The player supports .WMA, .WMV, .MP3, and .AVI files. Currently MPEG files are not supported, and a third-party program must be downloaded to play these, and WAV files are played in a separate player. Some versions are also capable of playing .M4A audio. Client for PPTP VPNs.

Awaiting Future Window Mobile Version

1)Windows Mobile 6.1 (2008)Windows Mobile 6.1 is a minor upgrade to the existing Windows Mobile 6 platform which brings with it a moderately retooled "carousel" interface [26], and several software improvements such as threaded SMS.
2)Photon (2009)Microsoft is currently working on an upgrade to the Windows Mobile platform codenamed Photon that will be powered by Windows Embedded CE 6.0. Reputedly, Photon would merge both Smartphone and Pocket PC versions in one Windows Mobile version, with the new interface being optimized for both direct touch and button-based interaction, reducing stylus use. Microsoft Photon has been in development since the release of Windows Mobile 5 and was originally scheduled for release in the first half of 2008, but has now been delayed to 2009 according to leaked Microsoft documents.

VoIP--Voice over Internet Protocol

An overview of how VoIP works

A typical analog telephone adapter for connecting an ordinary phone to a VoIP networkVoice over Internet Protocol (VoIP) is a protocol optimized for the transmission of voice through the Internet or other packet switched networks. VoIP is often used abstractly to refer to the actual transmission of voice (rather than the protocol implementing it). VoIP is also known as IP Telephony, Internet telephony, Broadband telephony, Broadband Phone and Voice over Broadband. "VoIP" is pronounced voyp.
Companies providing VoIP service are commonly referred to as providers, and protocols which are used to carry voice signals over the IP network are commonly referred to as Voice over IP or VoIP protocols. They may be viewed as commercial realizations of the experimental Network Voice Protocol (1973) invented for the ARPANET providers. Some cost savings are due to utilizing a single network to carry voice and data, especially where users have existing underutilized network capacity that can carry VoIP at no additional cost. VoIP to VoIP phone calls are sometimes free, while VoIP to public switched telephone networks, PSTN, may have a cost that is borne by the VoIP user.
Voice over IP protocols carry telephony signals as digital audio, typically reduced in data rate using speech data compression techniques, encapsulated in a data packet stream over IP.
There are two types of PSTN to VoIP services:

1) Direct Inward Dialing (DID) and access numbers.

2) DID will connect the caller directly to the VoIP user while access numbers require the caller to input the extension number of the VoIP user.

History-

Voice over Internet Protocol has been a subject of interest almost since the first computer network. By 1973, voice was being transmitted over the early Internet.[1] The technology for transmitting voice conversations over the internet has been available to end-users since at least the 1990's. In 1996, a shrink-wrapped software product called Vocaltec Internet Phone Release 4 provided VoIP, along with extra features such as voice mail and caller id. However, it did not offer a gateway to the analog POTS, so it was only possible to speak to other Vocaltec Internet Phone users.[2] In 1997, Level 3 began development of its first softswitch (a term they invented in 1998); softswitches were designed to replace a traditional hardware switchboards by serving as the gateway between two telephone networks
Security ModeMany consumer VoIP solutions do not support encryption yet, although having a secure phone is much easier to implement with VoIP than traditional phone lines. As a result, it is relatively easy to eavesdrop on VoIP calls and even change their content.[9] There are several open source solutions that facilitate sniffing of VoIP conversations. A modicum of security is afforded due to patented audio codecs that are not easily available for open source applications, however such security through obscurity has not proven effective in the long run in other fields. Some vendors also use compression to make eavesdropping more difficult. However, real security requires encryption and cryptographic authentication which are not widely available at a consumer level. The existing secure standard SRTP and the new ZRTP protocol is available on Analog Telephone Adapters(ATAs) as well as various softphones. It is possible to use IPsec to secure P2P VoIP by using opportunistic encryption. Skype does not use SRTP, but uses encryption which is transparent to the Skype provider.
Inshort Voice VPN solution provides secure voice for enterprise VoIP networks by applying IPSec encryption to the digitized voice stream.

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.