What is WIFI SIP phone ?

A WiFi SIP phone uses session initiation protocol to communicate to other phones across the world. These revolutionary devices take advantage of the protocol to communicate quickly and easily. While similar to VoIP WiFi phones, they are not exactly the same. A WiFi SIP phone specifically uses the SIP to initiate communications.

How An WiFi SIP Phone Works

The phone will first off establish a connection to the local WiFi network. This requires that you have the right pass code to get through if it is a secured network. At home this is done very easily by simply entering the code that you have put onto your router. If you are on a network you do not have administrative rights to this can be a bit more of a problem. However, if it is a free network then you should have no problems getting in touch with the administrator and having them pass you a key to get on.

Once you have established connection with the network you can then begin sessions with other VoIP devices or make outbound calls. There usually is software installed on the phone that will facilitate this. There are many different kinds of software out there, but it is best to go with whatever is installed on the phone. This should make the WiFi SIP phone seem to operate just like any other normal phone and once you get the hang of it you will have a hard time telling the difference. Some people seem to experience a bit more lag on a WiFi SIP phone, but this is more a problem with the network then the actual phone.

There are many different kinds of WiFi SIP phones out there, but they all perform and have similar functions. One thing to remember though is that a WiFi SIP phone is not a replacement for a normal phone simply because they do not emergency response capabilities. Without this a WiFi SIP phone will never be able to completely replace a cellular phone. They can be great to have at home though if you have a wireless network because there is no cost for making calls and no monthly bill other then your normal internet bill. You will need some kind of broadband connection to run the phone as while they do not require a ton of bandwidth, a simple dial up modem is not sufficient. Also, you would need to tie up the phone line to be able to get incoming calls.

How Long Is An iPad's Lifespan Expectancy?

Considering the hefty price of the iPad, many might wonder towards its life expectancy. But should this issue be of actual dire importance when you purchase an iPad or any other type of technology?

First off, when you purchase an iPad or any other type of electronic device you should carefully assess the product warranty period and conditions. Most of the products have been designed to function at maximum capabilities for the warranty period, with results gradually decreasing during the following period. The iPad comes with a warranty period of 1 year which covers a large array of possible technical problems. This means that the optimal period of use is of 1 year.

Some retailers might also offer an extended guarantee of 1 year. The reason for this is because the iPad as well as other technological devices will still function properly for another 1 to 2 years after the warranty period expires.

Usually, the first iPad technical problems appear after more than 2 years, depending on the level of use and in average it reaches 3 years. Most frequently the technical problems that appear are related to the battery life, an issue that concerns most consumers.

The battery of an iPad has a lifespan of about 12 hours initially. As the battery is continuously recharged the life span gradually decreases. For example, after 1000 charge cycles the batter will retain 80% of its capacity (9.6 hours).

This is based on recharging the batter"fully" during each charge. This is what the Apple Company promotes.

But then again, what happens if the battery completely dies? The Apple Service providers will replace the battery for free, if it is in warrant period. If the warranty period has expired, it will cost a certain fee.

Second aspect that you need to take into consideration when you purchase an iPad is the technology itself. Before you decide to make a purchase you should correctly evaluate the technology it has and the actual use expectancy of it.

In other words you need to correctly evaluate for how long you are expected to use it before the product can no longer resolve your needs and you need to purchase a newer and more efficient model.

Considering the fact that Apple is constantly improving its products and subsequently its iPad, the technological expectancy of an iPad is around 1 year and a half and maximum 2 years.

So, to sum it up, in order to cover the technical and functional aspects, we would say that the life expectancy of an iPad is about 2 years.

ER is an internet entrepreneur that reviews Apple iPads. She also reviews and recommends Video iPad Lessons for anyone who wants to get the most out of their iPad. Learn how to protect your investment. Download free report "iPad Protection" from her website at Review Apple Products.com.

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