When you’re on a call, you can transfer the call to another person’s voicemail directly. For example, you know that the other person is not at their phone. This way, you can avoid making the caller wait for the other person’s phone to ring and then go to voicemail.
As you talk to someone, you may find that someone else can handle your call. You can transfer the call to that person’s voicemail.
Press *55, then either
You can hang up at this point.
The call goes to the other person’s voicemail.
If the other person does not have a voicemail account, the call goes directly to that person’s phone.