Phone access is typically restricted to a supervised call using the phone on the staff administrator's desk who can simply cut you off and glare at you with silent promises of retaliation if you don't say what they want you to say and what they agreed to let you say before they hand you the phone, all with their finger resting on the disconnect button the whole time.

Unless you are not making them money, then they get you out of there asap and make calls on your behalf all day to other places to shuffle you around to.