VOIP allows tasks renders services that are more difficult to implement using the PSTN.
Only a reliable fast and stable Internet connection is required to make calls using VOIP, so we can see that VOIP can be accessed from almost anywhere unlike telephony services provided by the PSTN.
VOIP services also allows one to integtrate and make simultaneous use of other sevices available in cyberspace viz video conversations, data transfers etc.
No wonder why more and more people are using, and utilising the advantages of this "CYBER WONDER" as i would like to call it and getting benefited.
so guys make use of this sevice man, VOIP.