How to cancel call forwarding: ##61#, ##004# and ##002#

Use ##61# when the thing you set was missed-call forwarding: calls that ring first and only divert when you do not answer. This is the rule most people set when they are trying to stop calls going to voicemail.

Use ##004# when you set a combined conditional divert. That clears no answer, busy and unreachable together, while leaving all-calls forwarding alone.

Use ##002# when you want a full reset. It clears every forwarding rule on the line, including all-calls forwarding. It is the safest choice when calls are behaving strangely and you do not know what has been set.

##61# does not switch voicemail on. It removes the no-answer destination you set yourself. Once that destination is gone, your network falls back to its default destination for unanswered calls, which is normally voicemail.

That is why the code can look like a voicemail code even though it is really a call-forwarding cancellation code. You deleted your own rule and uncovered the default underneath.

Use ##002# if your phone never rings, if calls still divert after ##61#, or if you inherited a line and do not know what was set on it before. An old all-calls divert set with **21* takes effect before your phone rings, so ##61# cannot fix it.

The trade-off is that ##002# removes deliberate forwarding too. If you had a separate all-calls divert to a colleague, or a busy divert you still wanted, you will need to set it again afterwards.