Lots of people. Anyone can (try to) improve the telephone provided whatever they do falls within the specifications set out by the telecommunications industry regulatory system. There are certain conditions set out which manufacturers MUST adhere to - for example, frequencies for mobile & cordless phones and interference caused to other equipment.
duhfkjdhf
The telephone
The telephone has the same purpose today as it always has had - to communicate.
Currently, no.
6.2 billion
About 10.00
In order to find out what small business telephone systems that are offered today and how good they are, you are going to have to call the different companies and somehow do a comparison.
because the wire telephone has wire in it Answer 2 Well, almost all telephones used today are electronic devices, including mobile phone, wire telephone and ip telephone. Wire telephone is just a sub branch of electronic telephone.
Vietnam today has a modern telephone system, cell phones, broadcast radio and television. Of course, there are some remote rural areas where telephone wires haven't been economical to install yet - but even in very remote areas with generator power they listen to radio and watch TV.
macrowoeli
bob
If the telephone was never invented, there would be more face to face socialization. The world would not have a lot of the technologies that we have today.