If you don’t need to consult the new person who you want to transfer the call to, you can perform a blind transfer. Your call will be ended after you transfer the call.
Scenario: You (B) are talking with A, then transfer the call the C.
During the call with person A, dial *03 on your phone.You will hear the prompt “transfer” and the dial tone.
Dial C’s number and hang up.C’s phone is ringing. After C answers the call, the call between A and C is established.