Mobile phones are a great addition to telecom devices and there have been several changes in the technology used in the mobile phones. In the past, the mobile phones can be operated using the buttons on the mobile. The latest addition to the mobile phones is the touch screen mobile phones. You don’t have to remember which buttons you need to press. Simply, touch the phone screen and go to the menu directly. This saves a lot of time and provides maximum comfort for the mobile users. The display monitor of the touch screen mobile phones has all the functionalities to direct you to the desired menu when you touch the monitor. Early touch screen devices such as handheld palm series were not essentially touched with the fingers. Human handwriting is difficult to identify and so, these devices required the use of stylus to use the touch sensitive facility. This made the touch screen device, an expensive gadget suitable for use only by the enterprise customers. The latest technology makes it... more
Code division multiple access, simply called as CDMA is the technology used for radio communication in the present day mobile phones. This multiple access scheme allows sending of voice, data and signals for digital radio. The channels in this technology are defined with the use of PN sequences. The major advantage with this technology is the use of same frequency channel rather than the TDMA used in GSM devices. This facility allows several mobile phones to be controlled by a few cell sites and hence, CDMA is an economical technology for mobile phones. Numerous standards have been developed for the CDMA technology. The latest standard used in mobile phones is the CDMA2000, which is compatible with the earlier standards. The CDMA standard is a proprietary standard developed by the Qualcomm telecommunication company in the United States in the year 1993. This technology is used in the mobile phones of North America and several parts of Asia. The improvements made to the standard make it... more
In the world that we live in, everyone wants to know what things cost. This is especially true when looking to purchase a phone card. Now bear in mind that there are at least three different types of phone card: local, long distance and cards for a pre paid phone. The first two are usually interchangeable and the third is specific to pay as you go plans for any number of telephone service providers such as Verizon, T-Mobile and TracFone just to name three providers of pay as you go services. With that being said, how will you know if you are getting your money’s worth with a pay as you use phone card? This is dependent upon your pay as you use provider. Usual card limits are 15 30 45 60 and 120 dollars for a prepaid phone card. What you need to look at is how much time worth phone calls you can make with these monetary limits. You may also have service charges, such as a per day rate to consider. It is up to you how much time you put on a pay as you go phone. Now when dealing with the... more
Sometimes, identifying the best calling card distributor takes a little detective work. There are so many all over the world that you have to first decide where you are going to use the calling card and where you would be calling to in order to narrow down the prospects for calling cards. There are many calling card distributors and dependent upon country, a wide variety of cards to choose from. There are really two ways to go about this. The first way is if you are going to plan to get into business selling these calling cards. If you want to get into a business of selling these cards, then locating a calling card distributor can be easy. An internet search will do nicely. However, with that being said, you also have to look at the rate of return on one of these cards, the area that you are doing business in and the distribution of these cards. When looking into this business opportunity, a few common sense rules apply. Check out the distributor carefully before signing any type of contract.... more
When dealing with phone cards, there are many different options available for use of these phone cards. Now you would think that rechargeable cards would be on the top of the list, but sometimes they are not. Now there are many different reasons that you would want to go for a rechargeable phone card. These would not be limited to repeated use of the same card, if you are going to be calling a lot and if you want a cost effective way to manage your long distance calling costs for either domestic or international calling. Rechargeable phone cards are a good way to use the same card multiple times without having to buy a new card each and every time. The only thing that you really will have to watch out for is the time limit. Some rechargeable cards expire after two years, so you would need to keep an eagle eye on the expiration date. At the end of the two years, you would need to buy another card, but you can recharge the new card for up to two years also. Therefore, this is a good way... more
Video conferencing uses telecommunication technologies of audio-visual means to bring people of different places and locations together for a meeting group discussion. It has also been called “visual collaboration” because although you are physically distant from each other, you can actually see each other in the screens of your television or other technological devices such as your computer or even your mobile phone. Video conference is totally different from videophone because videophone is designed for a one-on-one conversation between two individuals while videoconferencing tends to bring together a group for a meeting. Videoconferencing adds another possible alternative, and can be considered when a live conversation is needed, visual information is an important component of the conversation, the parties of the conversation can’t physically come to the same location or the expense or time of travel is a consideration to the attending individual or group. We have several... more
For little more than fifty years, cellular phones have been existent as a technology. People recently started using cellular phones as a part of their daily life. Today in the United States and everywhere in the world, a member or even more than one member of each home owns cellular phones. It becomes part of our daily lives by constantly connecting people with one another. Cellular phones perfects a unique role during urgent and in times of emergency by providing an easy communication tool. To help us understand better, further notes establish a definition of cellular phones; discusses how cellular phones work and conversion of speech into electrical impulses. What is a Cellular Phone? Cellular phones are described as sophisticated radios. It consists of a cellular phone base station and a tower at the center of every cell for wireless communication gadget which uses small cells. These have extensive frequencies allowing people to use this communication device at the same time.... more
Telecommunications has come a long way, although today’s technology makes it easier than ever to communicate with someone across the world or across the hall, many people still have a tough time understanding it. Nowadays, telecommunications is improving and still is as each second ticks. The telecom industry includes new technological gadgets such as mobile phones, service providers, telecommunication products, the GSM, CDMA, WILL market, and 3G Spectrum. One of these gadgets is the iPod which is popularly known for playing music and because of scientific ingenuity it can also function as a note pad, remote control, storage device, a TV, Ouija board, a boom box and a lot more. Today, with the help of modern technology, the iPod is also used in general telecommunications. For instance the iPod is also designed for telecommunications purpose like phone calls, text messaging, videophones and video conferencing. With this new gadget, telecommunications is made easy making urgent or... more
Long Range Cordless Telephones earlier than the development of the cellular technology. The system includes the VHF and UHF cordless phone system that can be used until 100 km range from the base. This cost effective device can be used at an easy handle and simple mechanics. This telephone system is ideal for areas where residents and homes are considerably distant in proximity. To monitor your farmland or cottage (with the use of appropriate amplifier) from a distance, the long-range cordless telephones are accessible for your convenience. The long-range cordless telephone systems however are not sold in North America since they exceed the maximum power required as dictated by the FCC or DOC. This is the main reason why people in North America never hear or see them in the region. It provides an excellent alternate system to cellular phones with its excellent digital clear transmission to people in the region when necessary. This system’s base station can be set up with ease in... more
The General Packet Radio Service or GPRS is a telecommunications technology that is presently transforming the present shape of mobile communications. GPRS is a packet oriented Mobile Data Service providing data rates from 56 up to 114 kbit/s. Users of IS-36 mobile phones and Global System for Mobile Communications (GSM) can readily avail of this service. How does a GPRS work? A GPRS connection is linked by orientation to its Access Point Name (APN). The APN then identifies the appropriate services like Wireless Application Protocol (WAP) access, Multimedia Messaging Service (MMS), Short Message Service (SMS), and for Internet communication services such as World Wide Web access and email. The charge for GPRS data transfer is per megabyte of traffic transferred as compared to data communication via traditional circuit switching that is charged per minute of connection time, whether or not the capacity is used or is in an idle state. Thus, as compared to circuit switching, GPRS is a best-effort... more
