If the unit is on a public IP and Quintum can access it directly, then you do not need to be there. However, if it is not on public IP, then you will need to be able to access it and talk with Quintum. They need to get a number that comes up at the login prompt and then they will provide a one time, time sensitive password to get in and then you can change the password.
I do not believe there is a charge, but you will need to contact them during their normal business hours.