Your company uses Teams.

A user named User1 selects Forward my calls and all incoming calls are forwarded to voicemail as shown in the following exhibit.

Call answering rules

Choose how you want to handle incoming calls.

O Calls ring me O Forward my calls

All incoming calls will be forwarded to your voicemail.

You need to ensure that User1 can change the destination of the forwarded calls. What should you enable for User1?