Callin
AI voice platform offering white-label voice agents for vertical markets with enterprise-grade security and ultra-low latency.
Last verified:
What is Callin?
Callin.io is an AI voice platform that provides white-label AI phone agents for businesses, agencies, and enterprises. The platform enables users to deploy ready-to-use, fully customizable AI voice agents that handle both inbound and outbound calls without requiring any coding or development work. These AI agents can answer FAQs, capture leads, book appointments, handle customer support, qualify sellers and buyers in real estate, provide IT support automation, and manage tenant communications for property management.
Key features include multilingual AI voice agents with natural human-like conversations, call transfer capabilities to human operators, Google Calendar integration for appointment booking, CRM integrations via webhooks (Zapier, Make, n8n, GoHighLevel), carrier-grade security with 99.9% uptime SLA, GDPR & CCPA compliance, end-to-end encrypted voice data, and multi-carrier support (Callin, Twilio, Telnyx, SIP trunk). The platform offers industry-specific vertical solutions for property management, IT support, real estate, smart cities, EV charging, and a white-label platform for SaaS founders and agencies with multi-tenant architecture and client-level branding.
Callin.io is designed for digital agencies, service providers, SaaS founders, small businesses, property management companies, IT support teams, real estate professionals, municipal services, and enterprises looking to automate phone communications. It helps businesses scale customer service operations effortlessly without increasing headcount, expand service hours to 24/7, reduce missed calls, improve lead conversion rates (outperforming human agents), and achieve up to 800% ROI in campaigns. The platform processes over 2 million minutes of AI-human conversations monthly with 87% positive end-user experience.
Callin pricing
Pricing model: Paid
Callin.io uses modular pricing with three components: (1) Platform Plan (required) - Starter White-Label at $119/month for small agencies (white-label branding, client account management, Stripe integration, multilingual agents, core workflows, Google Calendar sync, BYOC/SIP trunk ready); Professional White-Label at $299/month for growing agencies (higher minute allowance, more client accounts, advanced workflows, priority performance, lower per-minute cost); Unlimited/Agency Scale at $499/month (unlimited client accounts, lowest per-minute pricing, priority support, advanced permissions, full marketplace access); Growth+/Enterprise at $1499/month (dedicated account manager, SLA agreements, HIPAA/BAA compliance, custom limits). (2) Usage-Based Voice Minutes - billed per $0.16/min with lower costs at higher volumes. (3) Optional Vertical Modules - Property Management AI Receptionist, IT Support Voice Agent, Real Estate AI Agents, Smart City & Public Services, EV Charging/Totems/Kiosks (each billed monthly). A free trial with 15 days and 30 free minutes is available. No monthly commitment required on pay-as-you-go.
Callin pros
- White-label branding with custom logo, domain, and UI
- No coding required - deploy in days not months
- Handles both inbound and outbound calls automatically
- Multilingual support for global audiences
- 99.9% uptime SLA with carrier-grade redundancy
- GDPR & CCPA compliant by design with end-to-end encryption
- Multi-carrier support (Callin, Twilio, Telnyx, SIP trunk)
- Natural human-like conversations with ultra-low latency
- Real-time appointment booking with Google Calendar sync
- Lead capture and qualification during calls
- Call transfer to human operators when needed
- Webhook integrations with Zapier, Make, n8n, GoHighLevel
- Industry-specific vertical modules (property, IT, real estate, EV)
- Per-second billing with volume-based discounts
- Client account management for agencies with Stripe integration
- Processes 2+ million minutes monthly with 87% positive experience
- Up to 800% ROI in campaigns
- Unlimited call volume without increasing headcount
- Advanced workflows and automations on higher plans
- Priority support on Professional and Unlimited plans
Callin cons
- No真正的 free tier - only paid plans start at $119/month
- Primary focus on white-label/agency use may overwhelm solo users
- Usage-based pricing beyond included minutes adds complexity
- Vertical modules are additional monthly add-on costs
- Requires separate carrier account or Twilio for phone numbers
- Both carrier minutes and Callin AI minutes billed separately
- Enterprise features like HIPAA require Growth+ plan ($1499/mo)
- Limited self-service documentation compared to developer-first platforms
Frequently asked questions about Callin
What is Callin.io and what does it do?
Callin.io is an AI voice platform that provides white-label AI phone agents for businesses. It enables you to deploy ready-to-use, fully customizable AI voice agents that handle both inbound and outbound calls without coding. These agents answer FAQs, capture leads, book appointments, handle customer support, qualify leads, and can transfer calls to human operators. The platform serves agencies, small businesses, property management, IT support, real estate, and enterprises.
How do I get started with Callin.io?
Sign up for a free trial that gives you 15 days with 30 free minutes to explore all core features. From your dashboard, you can create AI agents for inbound and outbound calls by choosing a ready-to-use agent or building one with prompts like ChatGPT. Add your business details, connect or purchase a phone number (via Twilio, Telnyx, or import your own), configure agent behavior and workflows, test with a test call, then launch to production.
What is white-label on Callin.io?
White-label means you can brand the entire platform as your own with your logo, favicon, custom domain, and UI. Your customers see your branding, not Callin's. This is ideal for agencies and resellers who want to offer AI voice agents as their own product. White-label plans include client account management, Stripe integration for billing your clients, and multi-tenant architecture. Starter White-Label starts at $119/month.
How are voice minutes billed and what do they cost?
Voice usage is billed per minute at $0.16/min as a single transparent rate with no monthly commitment, no tiers, and no hidden fees. Each call consumes two types of minutes: carrier minutes (charged by Twilio or your provider for the phone connection) and Callin AI minutes (for computation and LLM usage). As your monthly usage increases, the cost per minute decreases, improving your margins. Platform plans include some minutes, with usage-based pricing applying beyond included minutes.
What phone number options do I have?
You have three options: (1) Buy a new number directly through Twilio within your Callin workspace, (2) Import an existing number from Telnyx or another provider, or (3) Connect your current business number if already assigned. The platform supports multi-carrier options including Callin, Twilio, Telnyx, or SIP trunk. Once active, your AI agent uses the number like a real phone line with caller ID, voicemail detection, and call history.
Can Callin.io integrate with my existing CRM and tools?
Yes, Callin.io has native connectivity with enterprise CRM, ITSM, calendar systems, and automation platforms through webhooks and pre-built connectors. You can integrate with Make (Integromat), Zapier (for Google Sheets, Slack, HubSpot), n8n, and GoHighLevel. Webhooks send structured call data in real-time including caller details, extracted entities, timestamps, and transcripts. Pre-built integrations include Google Calendar for appointment booking and Zendesk for IT support ticketing.
What industry-specific solutions does Callin offer?
Callin offers five vertical modules as optional add-ons: (1) Property Management AI Receptionist with tenant workflows, escalation logic, multilingual summaries, and callback automation; (2) IT Support Voice Agent with ticketing workflows, learning from resolutions, and Zendesk integration; (3) Real Estate AI Agents with lead qualification, outbound discovery, follow-up logic, and DealMachine integration; (4) Smart City & Public Services with citizen support flows and multilingual handling; (5) EV Charging/Totems/Kiosks with real-time assistance and location-aware support.
How does call transfer work on Callin.io?
Call transfer allows your AI agent to redirect calls to human operators. You configure transfer details including the transfer phone number and a message the AI says before transferring (e.g., 'Let me connect you with our sales department, one moment please'). Then activate call transfer for any AI agent by going to AI Agents > selecting the agent > opening the Call Action tab > toggling on Transfer Call > selecting your transfer configuration. The AI detects when a transfer is needed and performs it automatically in real-time.
What security and compliance features does Callin have?
Callin.io is GDPR & CCPA compliant by design with end-to-end encrypted voice data. The platform offers 99.9% uptime SLA with carrier-grade redundancy and multi-carrier support for reliability. For enterprise and regulated industries, the Growth+/Enterprise plan ($1499/month) includes compliance options like HIPAA/BAA where required, dedicated account manager, SLA agreements, and custom limits/deployment models. Enterprise trust features include comprehensive audit trails for property management and mission-critical public service automation.
What makes Callin.io different from other AI voice platforms?
Callin.io is specifically built for white-label deployment with multi-tenant architecture, making it ideal for agencies and resellers. It offers industry-specific vertical modules ready for immediate deployment without development. The platform provides per-second billing with volume discounts, no forced bundles, and modular pricing where you only pay for what you deploy. Callin processes 2+ million minutes monthly with 87% positive end-user experience and up to 800% ROI. Unlike competitors, Callin doesn't sell minutes - they provide the white-label platform infrastructure while you control branding and client relationships.