There are people who say that phone extension cannot be done by ordinary people, only those who have technical knowledge can do work like this. If you heard this, we are here to prove they are wrong and anyone even if they are not having any technical knowledge can easily compete with it.
Basically, what it is, this extension will help to transfer the call to another person. You can also set this just by using your phone menu.
This phone number extension is very useful for business people. One person cannot handle all the calls like sales, purchase, complaints; so to manage this basic extension is used.