> ## Documentation Index > Fetch the complete documentation index at: https://docs.voxhealth.ai/llms.txt > Use this file to discover all available pages before exploring further. # Capabilities > Every action a voice agent can take, and the toggle that controls it. Capabilities are per-assistant switches in **Settings → Assistants → Capabilities**. Each one adds or removes an ability from the agent. When a capability is off the agent has no tool for it at all, so it cannot do it by mistake. It will take a message instead. Some capabilities are **sub-capabilities**: they only do anything while their parent is on. ## The full list | Capability | What the agent can do | Default | | ---------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------- | | **Appointment Access** | Looks up and reads back a caller's own appointments. With all three sub-toggles off, appointment access is read-only. | On | | ↳ Book Appointments | Checks availability and books new appointments. | On | | ↳ Cancel Appointments | Cancels existing appointments. Rescheduling also needs Book on. | On | | ↳ Confirm Appointments | Marks a caller as confirmed for an existing appointment. | On | | **Call Transfer** | Transfers callers to a person, using your [call routing](/channels/call-routing) rules. | On | | **New Patient Intake** | Registers new patients over the phone and hands the registration to the office. See [New patient intake](/agents/new-patient-intake). | On | | **Take a Message** | Takes messages for the office. | On | | **Billing & Payments** | Looks up account balances and billing history, and sends payment links. | On | | **Profile & Records Lookup** | Looks up a caller's profile and records. Identity verification needs this, or scheduling, billing, or registration, to be on. | On | | **Locations & Directions** | Lists your offices and gives travel time and directions. | On | | **Appointment Waitlist** | Offers to add a caller to the [waitlist](/patients/waitlist) when nothing works, and texts them when a slot opens. Needs Book on and the Waitlist feature enabled. | Off | | **Send Links** | Texts or emails links to your forms and policy documents. See [Links](/agents/links). | Off | | **Pharmacy** | Looks up the caller's prescriptions. Requires a pharmacy integration under **Settings → Integrations**. | Off | | ↳ Prescription Refills | Checks refill status and whether prescriptions are ready for pickup. | On | ## How to think about turning them on Start with **Appointment Access**, **Take a Message**, **Call Transfer**, and **Locations & Directions**. That covers most of what your phone actually receives, and none of it is irreversible. Add the rest once you have listened to a week of calls: * **Book / Cancel / Confirm** once you have checked that what the agent writes into your PMS lands in the right operatory, with the right provider and duration. * **Billing & Payments** once you are comfortable with balances being read out loud to a verified caller. * **New Patient Intake** once you have decided which fields are actually required. A long intake on the phone loses callers. * **Waitlist** once someone owns responding when a patient takes an opened slot. ## What the agent will not do regardless * Read records back to a caller it has not verified. See [Patient privacy](/security/patient-privacy). * Give clinical advice. Clinical questions transfer, or become a message. * Invent an answer to a practice question that your [knowledge base](/agents/knowledge-base) does not cover. * Use a capability your PMS integration does not support. Availability differs per system. See [Supported systems](/reference/supported-systems).