The correct answer is: A. They are possible but not yet free.
Internet phone calls, also known as Voice over Internet Protocol (VoIP) calls, are possible and have been around for many years. However, they are not yet free, as there are still some costs associated with using them, such as the cost of internet access and the cost of the VoIP service itself.
VoIP calls are made over the internet, rather than over the traditional telephone network. This means that they can be made to and from anywhere in the world, as long as the caller and the recipient have an internet connection. VoIP calls are often cheaper than traditional phone calls, and they can be more reliable, as they are not affected by bad weather or other factors that can disrupt traditional phone lines.
There are a number of different VoIP services available, and the cost of these services varies depending on the features offered. Some VoIP services offer unlimited calling, while others charge per minute. Some VoIP services also offer features such as call forwarding, call recording, and voicemail.
If you are considering using a VoIP service, it is important to compare the different options available to find the service that best meets your needs. You should also consider the cost of the service, as well as the features that are offered.
Here is a brief explanation of each option:
- A. They are possible but not yet free. This is the correct answer, as VoIP calls are possible and have been around for many years, but they are not yet free, as there are still some costs associated with using them, such as the cost of internet access and the cost of the VoIP service itself.
- B. They are not possible. This is not the correct answer, as VoIP calls are possible and have been around for many years.
- C. They are currently standard practice. This is not the correct answer, as VoIP calls are not yet standard practice, although they are becoming more popular.
- D. None of the above is an accurate statement about internet phone calls. This is not the correct answer, as option A is an accurate statement about internet phone calls.