NethVoice CTI (Phone-Island): cancel transfer does not work

[viktec]

Steps to reproduce

I tested this with Phone Island.

1. I'm on a call with Mario and want to transfer the call to Marco.
2. I click on Transfer and select Marco.
3. Marco does not answer, and before the timeout, I click on Cancel Transfer.
4. The cancellation does not work: the call ends, but the transfer continues in the background.
5. If Marco does not answer and the timeout expires, the call should return to me, but this does not always happen.

Expected behavior

The transfer should be canceled immediately when clicking Cancel Transfer.

Actual behavior

Even after clicking Cancel Transfer, the transfer continues instead of being interrupted properly.

Components involved

• PhoneIsland