AI Voice Agents
AI voice agents that call, qualify and book from your instructions. Each agent follows your script, uses tools mid-call, and returns a recording, transcript and summary for every call.
Key takeaways
- TopCalls AI voice agents hold natural two-way sales conversations with real-time replies.
- TopCalls bills AI calls from $0.25/min by the second, with no seat fees for AI calling and no setup fees for self-serve AI calling.
- TopCalls agents speak up to 78 languages and switch language mid-call only when your instructions allow it.
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Built-in voices
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Languages supported
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Always available
Capabilities
What's under the hood
Every feature is designed to work together, giving you a complete system out of the box.
Natural Voice Quality
Choose from the built-in voice library (13 Live voices, 31 Legacy voices) or clone your own voice. Callers can interrupt the agent, so the back-and-forth feels like a normal call.
Customizable AI Behavior
Define your agent's identity, goals, tone, and boundaries in the instructions. Temperature (0 to 1, default 0.7) lets you balance consistency with conversational flexibility.
Always Available
Agents answer inbound calls on your numbers and dial outbound inside the hours you set, including nights and weekends if you choose.
Up to 78 Languages
Speaks English, Spanish, French, German, Portuguese, Arabic, Hindi, and Mandarin, among others, all with native-sounding accents. How many you get depends on the transcription and voice models you choose.
Script Customization
Write instructions with variable injection like {{patient_name}} and {{appointment_date}} for personalized conversations.
Real-time Actions
Agents can book appointments, look up orders, update CRM records and send confirmations during calls through function calling.
Use Cases
Built for real workflows
Inbound Reception
Your AI agent answers calls on your numbers, books into your calendar through tools, and can transfer the caller to one of your people when needed.
Outbound Sales
Call consented leads with personalized conversations. Each call follows your instructions and the prospect's answers, qualifying interest and booking demos for your sales team.
Customer Support
Agents handle routine inquiries and transfer the caller to one of your people on request.
Frequently asked questions
What happens when a TopCalls AI agent reaches voicemail?
With voicemail detection on, the agent hangs up when it reaches a mailbox, and the campaign can retry that lead on the schedule you set. That keeps your per-minute spend on live conversations instead of recorded greetings.
How fast do TopCalls AI agents respond in conversation?
TopCalls agents reply fast enough to stay close to the natural pause in human conversation. Prospects can interrupt mid-sentence and the agent stops, listens, and adjusts its answer, so calls feel like a dialogue instead of a recording playing at them.
Do AI voice agents work for outbound sales calls?
Yes. TopCalls runs outbound qualification, appointment setting, follow-up and win-back campaigns for contacts who agreed to be called. The agent works from your script and can transfer a hot lead to your sales team mid-call. You stay responsible for TCPA, TSR, DNC registries, GDPR, including consent and opt-outs.