PSTN will convert the digital signal from VoIP into voice signal. Their networks interacts using satellite frequency.
There are many Nokia mobile phones that are now compatible with 3G networks. Most of the latest Nokia handsets are 3G compatible. The best way to find out would be to speak to the mobile phone company you choose before you choose your handset.
No. A 4G phone typically is compatible with 3G networks, especially since 4G networks are not entirely established. 3G however is a lower generation technology that was created prior to the 4G so there just isn't a way to have the technology already in place for the newer.
Vodafone India first launched its 3G line in the first quarter of the year 2011. The company plans to spend about $500 million on all of its 3G networks.
Micromax mobiles have started with android series phones which supports 3G networks. Few examples of their phones that support 3G are Micromax A57, Micromax A100, etc
The short answer: 3pg is the format used to send audio/video data over 3G networks. The benefit is that 3g phones handle this format.
Distinguish between the 4G LTE, 4G WiMax, and 4G WiBro networks based onusers perceptions
One can go to their local cell phone service stores, including Verizon, AT&T, and Sprint to get information on 3G networks. One can also call their local cell phone service stores for the information.
No, 3G is not available everywhere. Some companies still have yet to complete their own 3G network. American phone companies decides to put out 3G phones before they made their 3G networks. Unlike Japan, who created their 3G network before their 3G phones which have made their cell phones and cell phone services the most advanced in the world.
Second Generation, 3G networks are now starting to be more popular.
bcoz 3G has better coverage, and is more secure than wifi and other adhoc networks
Go to Settings>Wireless & Networks>Mobile Networks and uncheck the "Data Enabled" box.