Archive for signal
VOIP that is Voice over Internet Protocol is set of protocols used for communication purpose. Transmission of voice over internet is procedure consist of multiple steps. These steps include signaling, conversion of analog signals to digital signals, encoding, packet transmission, over networks. This is one technology which has evolved in short period of time and change the face of communication all over the world.
Initially the VoIP based system was developed in 1990 by Israeli company named Vocaltec for the purpose of communication with the help of internet. After that by 1998 some commercial companies launched their PC to PC and Pc to Phone software based on VOIP technologies. As primarily these services were introduced as cost free services thus, large numbers of people were attracted and used these solutions. According to the statistics VoIP based calls were 1% of telephone calls by 1998 however this percentage increased up to 25% by 2003.
VoIP is real time broadcast of voice with the help of internet connection. Voice signals are basically analog type of signals. With the help of VoIP technology these analog signals are converted to digital signals. The digital signals are transmitted over long distance with the help of internet protocols. These digital signals are in form of packets. Voice packets contain source and destination information along with voice data. The address of destination helps the packets to detect right network. When reach to destination these voice packets are decompressed. VoIP technology has reduced the cost of long distance communication and revolutionized the industry of IP Telephony.
It was first realized by Corporations the importance of VOIP technology and its potential advantages to global business. Free online communication has been one of the biggest blessings of technology. Telephone was used as only quickest means of communication over long distance for long time. Due to the reason it had cost hundreds of dollars monthly to people. With the introduction of computer technology along with IP telephony this cost is reduced to great extent. Why should people pay extra money for telephone services when computer along with DSL can serve the both purpose.
VOIP technology is not only beneficial for home users but it is also of great advantage for business, corporations and industry of technology. Industry related to VOIP technology has earned huge profits by releasing software and hardware required for IP Telephony. One such example is VOIP based software SKYPE which has been recently bought by Microsoft worth 8.5 billion dollars.
Cordless phones are used by individuals at home or at work place. These cordless phones are inexpensive and have several useful features. The preference of cordless phones is much more than normal telephones which are used in the house. People use cordless phones because of their connection power and portability. Virtually, everything can be managed by a cordless phone. House security and surveillance is ensured cordless phones.
Cordless Phone System for Household
A cordless phone unit is beneficial because it is easy to use. It can be implanted anywhere in the house depending upon the requirements of the customer. Several companies provide the best packages for cordless phones. Most Voice Over IP Phones or Cell Phones do not have a clear voice. Cordless Phones and Traditional Landlines are still the ideal choice for most when it comes to crystal clear clarity of voice.
Landlines – No More In Use
The past landlines are discarded by most people today. The copper wired telephone systems are not in use anymore and most of these have been replaced by Fiber Optic Wired systems. Cordless Phones can literally monitor the entire environment of the house. The people in the house can communicate easily.
Answering Machine – Sharing Between Multiple Devices
The answering machine is expensive and most homes usually have a single unit. By installing the answering machine with the power base of the cordless phone, the machine can be accessed from anywhere in the house. This is a prime benefit of having cordless phones in the household.
2.4 GHZ Cordless Phone Units
A 2.4 GHZ Cordless Phone can be purchased at about US$20 from the market. These phones are cheap and available everywhere. These phones usually have a good storage memory. Names, Call Records and Last Dialed Number Records are also stored in the memory of such Cordless Phones.
Benefits of 2.4 GHZ Cordless Phone Units
The 2.4 GHZ Cordless Phone provides a lot of security with it. These Cordless Phones also possess ringtone changing options, options to select voicemail and a large screen display.
As soon as new technology is introduced in the smart phones, sales war starts among the competitive companies. Now is the time for online sellout for Motorola’s Droid X. Although the companies do not reveal their actual sales data, the Droid X seems to be sold out in advance on internet sales and soon it will be short.
According to research, the Verizon version of Google’s smart phone is doing great sale and in short supply at Verizon stores. Soon it is will be the same with retailers. So everyone wants change, other than Apple’s I-phone, whose sale is now reduced due to its reception difficulty. Verizon also promoted the Droid a lot, which is offered by other carriers too. Droid has not very quick sale now and it is unfamiliar to many but it is said to the potential to catch the sales of Apple’s iPhone.
The droid promoters say that apple is only at the top for its sales not for its usability. According to them Droid is more user friendly than Apple in many applications. In Droid the users are being able to create their own applications without having to submit them to Apple. It has multiple carriers, including AT&T, Sprint, Verizon and T-Mobile.
Although we all love to carry a smartphone around, their battery may disappoint you at a time when you require the phone the most.
No matter whether it is your favorite iPhone, a Droid or a BlackBerry, all smartphones consume more energy and that too, really fast.
So, how do you make the best of it? The answer is simple, use these simple power management techniques.
1. Turn The Phone Off
If you want to save some battery power, and don’t want to answer any calls too, then turn off the phone while you sleep or do some other work.
If you leave a cell phone on, it consumes battery power even if you’re not using it. Switch it off and save some power.
Although wireless networks are very useful, they can easily be impaired by several physical and networking issues, some of which can be easily resolved to provide more effective service.
As we all know, wireless networks rely on radio waves, thus the things which can disrupt over-the-air television, or radio reception can also cause problems with wireless.
Here are some troubleshooting tips to help you solve issues with your wireless networks.
1. First of all, change your physical location relevant to the router. The closer you are to it, the better, as the wireless signals get weaker with distance. However, it might be difficult to this when you are at a public hotspot, as it will be difficult to tell where the router is. In such cases, walk around the space you are in, watching your wireless signal meter and locate a spot where the signal is strong.