Connected carefully
Provider-neutral where it matters.
Infrastructure integrations stay behind Frontal Voice contracts so customer workflows do not depend on one vendor's data model.
Voice provider
Natural AI voices run on dedicated voice infrastructure behind a Frontal Voice contract, so your receptionist is not locked to one vendor.
Calendars
Google Calendar and Cal.com adapters sit beside a deterministic mock calendar.
Notifications
Email and SMS channels use replaceable provider abstractions and never claim delivery before confirmation.
Outbound webhooks
Growth and Professional organizations can deliver normalized lead and appointment events to customer systems.
Billing
Stripe Checkout, portal, subscriptions, and metered usage are isolated behind a high-integrity billing subsystem.