The phone call after an arrest that you're entitled to might just be a trap. Your one phone call after an arrest is monitored and recorded, especially if you're in an interrogation room. They're trying to get you to call somebody before you get booked. So, if you're making a phone call after you've been arrested, whether you're at the jail, or whether you're in the interrogation room, or you might be in the back seat of the police car, it's being recorded and it's being monitored, so just know that. Don't say anything about the offense. Don't say anything about what happened to you. Say, "They're taking me to jail. Come bond me out." That's all you need to say. They'll know what to do after that.