All About Telephony

 
Many peoples are engaging their hands with Google Nexus One, a lot other phone manufacture companies are worrying about this Google phone, is not it too early to talk about it? Perhaps fearing that grow enormously in popularity of this phone, or maybe the logo of the browser in a cell can inhibit many companies.
 

 
The [...]

Masni Rizal Mansor asked:
VoIP is Voice over Internet Protocol. Standard telephone lines are referred to as PSTN or the Public Switched Telephone Network. PSTN works on circuit switching. A good example of circuit switching is the old switchboard operator who would connect callers to receivers by the use of electrical circuits. VoIP is Packet [...]