Voice Agents

Voice agents when basic phone bots aren't enough anymore

Takes real actions across 900+ apps. Manages data during calls. Deploys with version control—and remembers customers when you need it. This is what enterprise-grade voice automation actually looks like.

Voice is just the interface

Behind every call is an autonomous agent that can access your systems, execute workflows, and complete complex tasks—all while the conversation is happening.

Autonomous execution

Create records, trigger workflows, update databases, process transactions. The agent completes tasks during the call—no handoffs, no delays.

Full system access

Your CRM, helpdesk, databases, APIs—the agent works across your entire stack simultaneously, executing multi-step operations within a single call.

Precision control

Configure exactly which tools, integrations, and behaviors are available. Deploy with version control. Roll back instantly when needed.

Core Capabilities

Six systems that change everything

Each capability is powerful alone. Together, they create voice agents that operate at the level your business demands.

Persistent Memory

Your agent remembers every interaction. Customer preferences, previous issues, purchase history, conversation context—all instantly accessible through semantic search.

Organization-level memory shared across all agents
Customer-level context for personalized interactions
Memory cards with documents, transcripts, structured data

In Practice

"Hi Sarah, I see you called last week about the Henderson account. The invoice issue was resolved on Tuesday—is this about something else?"

Agentic Tools

Your agent doesn't just talk—it acts. Configure which tools are available, and watch your agent book appointments, process payments, create tickets, and execute workflows in real-time.

Dynamic tool selection per agent configuration
Schema-based custom tools for proprietary workflows
Voice-optimized execution with real-time feedback

In Practice

"I've scheduled your appointment for Thursday at 2pm, sent the confirmation to your email, and added the pre-visit checklist to your patient portal."

900+ Integrations

Connect your entire business stack. Salesforce, HubSpot, Zendesk, Slack, Google Workspace, Stripe, GitHub—your agent works across all of them simultaneously during a single call.

OAuth & credential management for secure connections
Per-tool permissions for granular access control
Multi-app workflows executed within a single call

In Practice

Customer reports bug → Agent creates GitHub issue with transcript → Links Zendesk ticket → Creates Jira story → Notifies on-call in Slack. All within the call.

Collections

Your agent manages structured data on the fly. Create records, update databases, maintain inventories—without any backend development. Schema-validated, instantly searchable, automatically synced.

Agent-managed databases created during calls
Schema validation ensures data integrity
Memory integration makes data available to all agents

In Practice

Lead calls in → Agent captures qualification data → Creates record → Syncs to CRM → Available to sales team instantly. No forms, no delays.

Voice Settings

Control exactly how your agent listens and responds. Three intelligent presets for common scenarios, plus expert settings for precise tuning. Because not every call is the same.

Conversational, Patient, Responsive presets for different caller types
Pause timing and interruption handling tuned per use case
8 distinct voices to match your brand

In Practice

Medical scheduling uses Patient preset with extra pause time for elderly callers. Sales uses Responsive for quick qualification. Same platform, tuned per use case.

Deployment & Version Control

Deploy with confidence. Multi-number deployments, immutable version history, instant rollback. Every configuration change is tracked. When something needs to change, change it safely.

Multi-number deployment from single configuration
Instant rollback to any previous version
Full audit trail for compliance requirements

In Practice

Test on dev number → Deploy to 10 production lines → Issue reported → One-click rollback → All lines restored in seconds. Zero downtime.

And everything else you'd expect

IVR Builder

Build phone menus with keypad routing. Route to agents, voicemail, transfers, or custom logic based on caller input.

Call Analytics

Full logging with transcripts, duration, outcomes. Optimization recommendations based on call patterns.

Compliance Ready

Recording management, audit trails, terms versioning. Built for regulated industries from day one.

SMS Integration

Send confirmations, follow-ups, and links during calls. Seamless voice-to-text workflows.

Agent Instructions

Managed prompt service for complex instruction sets. Version and deploy behavioral changes independently.

Blocking & Filters

Control what your agent can and cannot do. Blocklists for numbers, topic restrictions, action limits.

Model Selection

Choose between Standard and PRO models per agent. Balance cost and capability for each use case.

Browser Testing

Test calls directly from your browser before going live. No phone required during development.

For Developers

Build on our API

Full programmatic access to voice agent configuration, deployment, and real-time call events. TypeScript SDK, webhooks, and OpenAPI docs.

REST API with OpenAPI 3.1 specification
Webhooks for call events, transcripts, outcomes
TypeScript SDK with full type safety
// Deploy voice agent programmatically
const agent = await lineai.voiceAgents.deploy({
name: "Support Agent",
instructions: "Handle support inquiries...",
voice: "sage",
preset: "patient",
memoryCards: ["card_support_kb"],
tools: ["zendesk_create_ticket"],
integrations: ["zendesk", "slack"],
});
// Agent deployed to: +1-415-555-0123

Ready for voice agents that actually work?

Stop settling for phone bots that can only answer questions. Deploy agents that remember, act, and integrate across your entire business.