I have met the non-hanged up call after being transferred.

The following is the test scenario.

1. A makes a call to B

2. B answers the call of A and holds the call of A.

3. B makes a call to C and transfers the call of A to C before C answers the call of B.

4. A hangs up the call before C answers the call of A.

In this state, C’s phone is ringing endless.

Why is not the channel of C hanged up?

Thanks for reading my mail.

Sangwoo Jin.