# Outbox

Route list: If you connected multiple modem, when one modem break app will try use other modems send the SMS until the SMS be sent successfully.

If you enabled 'Queue' option,  you will see 6 outbox, each outbox work for different queue. you need assign modem for each queue. please refer to Phone/Modem detecter   when you compose new message you need select which queue did you want used.