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Product

Voice

A better customer experience is calling.

Natural and effective

Delight your customers across inbound and outbound calls.

  • Enable better, more human conversations

    Deliver low-latency voice interactions that handle interruptions, background noise, accents, and detect customer sentiment in real-time to adapt tone and pace while remaining calm and helpful.

  • Resolve questions instantly and accurately

    Replace rigid IVR menus with an empathetic voice agent that understands customer context, leverages memory for personalized experiences, and delivers accurate, real-time resolutions while representing your brand.

  • Speak in over 55 languages

    Produce fast, accurate support with native-level fluency and seamless mid-conversation language switching.

Enterprise-ready

Designed for teams who require reliability, adaptability, and complete control.

  • Build, test, deploy, and optimize

    Build agents with Ghostwriter, validate with voice simulations across real-world edge cases, deploy across all channels, and continuously optimize with AI-driven insights.

  • Orchestrate with best-in-class models

    Every turn is routed to the optimal model—maximizing speed, accuracy, and response quality in the right language and tone.

  • Escalate seamlessly to support teams

    When a human touch is required, transition conversations to care representatives with full context and history.

Voice payments

Collect card and ACH payments entirely over the phone with no IVR handoff.

  • One continuous conversation

    From payment request to confirmation, everything happens in a single, uninterrupted call.

  • Secure by design

    Card details are collected via DTMF tones through Level 1 PCI compliant infrastructure, and routed directly to your payment processor.

  • Easy to integrate

    Voice payments connect to your existing payment processor with a standard integration.

Discover what Sierra can do for you

Find out how Sierra can help your business build better, more human customer experiences with AI.