What is the difference between internal number transfer and group transfer (070) when transferring calls?

Group transfer (070) and internal number transfer have different processing methods.

Group transfer directly transfers the call to the waiting queue as a Cold transfer, so it does not depend on whether there are waiting agents or not, and the initial agent who received the call moves to post-processing.

On the other hand, internal number transfer means that if the receiving agent B is waiting when agent A transfers the call, the phone will ring until agent B answers. When agent B picks up, agent A will switch to post-processing. If agent B is busy or not waiting, agent A will hear the message 'Cancelling the transfer,' and the call will return to agent A.