How to reset extention to default state

hi assume an extention did many problems like he pressed many feature calls

that blocked some caller id
put itself in DND state
forwarding state

i want to remove all the old settings and be like new extention

what command from ssh can help me ? or from asterisk console ?

cheers

Asterisk doesn’t maintain state out of the box. You must have provided a dial plan that implements the state. Without details of that dialplan, we can’t answer your question.

In particular, people often ask about the effects of using the dialplans supplied as part of and generated by FreePBX. Peer support for those is proved at community.freepbx.org