Voice Agents

Phone calls,
perfected.

Inbound, outbound, voicemail, human handoff, calendar booking. BYO SIP or use ours. 285ms p95 on cache hit · 318ms weighted. 100+ languages, code-switching mid-call, emotional tone.

Deploy an agent → Hear a demo call Try the editor → Read the handbook

Two directions · one platform

Inbound or Outbound?

Every agent is built for one direction. Inbound agents answer. Outbound agents reach out. Different flows, defaults, and guardrails — same editor.

Inbound

Answer every call.
24/7.

AI receptionist that never sleeps · greets, routes, books
IVR replacement — natural language instead of press-1
Triage & deflection — resolves FAQs, escalates the rest
After-hours coverage with warm voicemail handoff

See Inbound templates →

Outbound

Reach them first.

Reactivation — wake dormant customers, patients, students
Collections — FDCPA-compliant, quiet-hours aware
Recruiting — candidate screens in 30 minutes, not 3 days
Sales SDR — cold dial, AMD + voicemail drop, book demos

See Outbound templates →

Live call · Outbound · Acme Clinic Intake p95 · 286ms · cache hit 00:42 +1 415 555 0119

Agent

Nova · Clinic Intake

Nova

gpt-4o · eleven_v2 · warm

Calling

Sofia Reyes

DOB · 1987-04-22 · Patient

Language

English → Español (mid-call switched)

Sentiment +0.42

Cost $0.017

Interruption 1

Turns 14

Live transcript streaming

Tools used

✓

verify_identity110ms

✓

lookup_calendar88ms

●

book_slot...

send_smsqueued

Knowledge used

📄

clinic-policies.md2 chunks

📄

providers.csv1 row

Next action

Book slot · Dr Patel · Thu 2:30p

Everything a call needs

Built-in, not bolted on.

Inbound & Outbound

Ring-in, ring-out, conferences. BYO SIP (Twilio, Telnyx, Plivo) or use our managed trunks with STIR/SHAKEN branded caller ID.

TELEPHONY

Voicemail drop

Answering machine detection (AMD) with dynamic, personalized voicemail scripts. Leaves context-aware messages, never canned.

AMD · VM

Human handoff

Warm or cold transfer. SIP REFER, conference merge, or dial-out. Full context packet — transcript, intent, CRM fields — passed to the rep.

WARM · COLD · WHISPER

Calendar booking

Native Cal.com, Calendly, Google Calendar, Outlook, Acuity. Reads availability, books, rebooks, cancels — within the call.

5 CALENDARS

Tools & callbacks

Mid-call actions — REST, GraphQL, MCP. Native CRM, helpdesk, payments. Zero-state or stateful.

MCP · REST · GRAPHQL

SMS follow-up

Send confirmations, payment links, receipts, or opt-in capture mid- and post-call. A2P 10DLC ready.

A2P 10DLC

Bring your own stack

Pick your model.
Swap it any time.

Configure an agent →

Model

GPT-4o$2.50 / M

Claude Opus 4.6$15 / M

Gemini 2.0 Pro$3 / M

Llama 3.3 70B$0.88 / M

Qwen 2.5 72B$0.90 / M

Your fine-tunebyok

Listen (speech-in)

Deepgram Nova-3180ms

Whisper large-v3240ms

AssemblyAI Universal210ms

Gladia200ms

Speechmatics260ms

jvapi v3 (own)140ms

Speak (speech-out)

ElevenLabs v2140ms

Cartesia Sonic80ms

PlayHT 3.0160ms

Azure Neural220ms

Rime v2110ms

jvapi Voice (own)95ms

10 verticals · editable live

Pick a template.
Edit it with AI.
Ship it.

Your agent, configured the way you talk. Chat with Copilot, watch the template update, use it on a real call within minutes.

Clinic Intake Dental Receptionist Sales SDR Recruiting Screener Collections First-Party Restaurant Reservations Home Services Dispatch Insurance FNOL Fitness Booking Real Estate Lead Qualifier

Agent Copilot

gpt-4o · 240ms

Clinic Intake v1 · draft · 6 questions · Cal.com booking

Greeting say

Core questions 6

1Patient name and date of birth⋮⋮

2Reason for visit (symptoms, duration)⋮⋮

3Preferred provider (or no preference)⋮⋮

4Preferred appointment time window⋮⋮

5New patient or established⋮⋮

6Callback number for confirmation⋮⋮

Tools 5 available

✓ lookup_calendar ✓ book_slot ✓ verify_identity + send_sms + transfer_to_nurse

Voice eleven_v2

Nova · Warm Female ▶ 0:04

· clean · Edit this template →

Phone calls, perfected.