Typically GOTV is a distinct phase of the overall campaign. Tactics used during GOTV often include: telephoning or sending personalized audio messages to known supporters on the days leading up to an election (or on election day itself), providing transport to and from polling stations for supporters, and canvassing known supporters. Canvassing for the purpose of voter registration usually ceases when GOTV begins. Other activities include literature drops early on election day or the evening before and an active tracking of eligible voters who have already voted.