DEEP MIST
AI

90+

languages, native fluency

200-500ms

model-side latency

24/7

never on break, never on hold

70%

of L1 calls handled, hard 30% routed (Salesforce 2026)

VOICE AGENTS, IN PRODUCTION

Voice agents in production. Not just on stage.

Phone calls don't stop at 5pm. Or in the language your team doesn't speak. Or when your best rep is having a bad day. We build voice agents that handle the easy 70%, hand off the hard 30%, and never go on break.

Start a project

WHAT IT DOES

Pick the job. We'll build the agent.

Four shapes. The one that matches your phone problem is the one we'll ship.

FRONT DESK

Pick up the phone. Even when no one's there.

  • Receptionist
  • Routing
  • Bookings
  • After-hours
  • FAQ

from $14,995 build

MOST CHOSEN

CUSTOMER SUPPORT LINE

Handle the easy 70%. Hand off the rest.

  • Tier-1 tickets
  • CRM-aware
  • Lead qualifier
  • Outbound caller
  • Warm handoff

from $44,995 build

VOICE FLEET

Multiple agents. One operating system.

  • Multi-flow ops
  • Custom integrations
  • HIPAA on request
  • SOC 2 posture
  • Multi-region

from $89,995 build

BESPOKE

Anything you can imagine.

  • Custom architecture
  • Regulated build
  • Multi-region
  • Air-gapped
  • Voice + multimodal

from $129,995 build

Tell us your scope →

WHY IT HOLDS UP

Engineered for real conversations. Not script reading.

Four capabilities that decide whether a voice agent works in production.

Hears emotion

Detects frustration, confusion, and joy in your voice, then adapts. De-escalates angry support calls automatically.

"I can tell this is stressful. Let me take it from here."
Lets you interrupt

Talk over it any time. It stops, listens, and resumes where you left off, like a real conversation.

"Sorry. You said you needed it shipped this week. No problem, let's get started."
Speaks 90+ languages

Native multilingual voice. Switch mid-sentence. No translation lag, no foreign-language hold music.

"Of course we can switch to Spanish, sin problema."
Reads conversation rhythm

Knows when to stay silent. Filters background noise. Doesn't fill the gaps with filler words.

"Take your time. I'll wait."

PLUGS INTO YOUR STACK

We connect what's already running your business.

CRM
  • Salesforce
  • HubSpot
  • Zoho
  • Pipedrive
Calendar
  • Google Calendar
  • Outlook
  • Cal.com
  • Calendly
Telephony
  • Twilio
  • Vonage
  • Telnyx
  • Your existing PBX
Payments
  • Stripe
  • Square
  • PayPal
  • Adyen
Helpdesk
  • Zendesk
  • Intercom
  • Linear
  • Freshdesk

Or anything else with an API. Yours included.

HOW IT DOESN'T SCREW UP

Five things you're worried about. Five built-in answers.

Every concern below has a mechanism behind it.

WHAT IF

It doesn't know the answer.

CONFIDENCE THRESHOLD + HANDOFF

If the agent's confidence drops below threshold, it confirms, rephrases, or warm-transfers to a human with full conversation context. Never invents an answer.

WHAT IF

My caller is angry or confused.

EMOTION DETECTION + DE-ESCALATION

Realtime sentiment analysis on voice tone. Triggers a de-escalation script. If the caller stays escalated, the agent hands off to your team.

WHAT IF

My caller wants a human. Right now.

INSTANT WARM HANDOFF

Saying "talk to a human" or "agent please" triggers an immediate warm-transfer with the full conversation log handed to your rep.

WHAT IF

My compliance team is asking.

SIGNED RECORDINGS + EXPORTS

Every call recorded, transcribed, cryptographically signed, exportable. Audit trails ready for SOC 2, HIPAA, PCI review. No third-party log retention.

WHAT IF

My industry is regulated.

HIPAA / SOC 2 ON REQUEST

Regulated builds (HIPAA, SOC 2, GDPR-compliant data residency) in Voice Fleet and Bespoke tiers. Private-VPC deployment, EU/US/regional data pinning.

All calls reviewable. All decisions reversible. All data yours.

HONEST PRICING

Honest pricing. No surprises.

Three tiers below typical custom-build cost. One Bespoke for everything else.

Front Desk
Typical price
$50,000
Deep Mist · Front Desk
from $14,995
Customer Support Line
Typical price
$125,000
Deep Mist · Customer Support
from $44,995
Voice Fleet
Typical price
$250,000
Deep Mist · Voice Fleet
from $89,995

Roughly two-thirds less than what you'd pay for a custom build.

Front Desk

Receptionist, after-hours, FAQ + booking + routing.

from $14,995

from $50,000 typical

PolyAI / Decagon entry

BUILDS IN 3-5 DAYS

  • Custom prompt + persona engineering
  • One inbound number (Twilio or existing PBX)
  • Calendar integration (Google / Outlook / Cal.com)
  • SMS notifications for missed calls and messages
  • Recording, transcript, searchable archive
  • Up to 2 warm-transfer destinations
  • 1 round of revisions
MOST CHOSEN

Customer Support Line

Tier-1 deflection, multi-intent, CRM-aware. Lead qualifier and outbound caller modes included.

from $44,995

from $125,000 typical

Sierra / MasterOfCode midpoint

BUILDS IN 7-10 DAYS

  • Everything in Front Desk
  • CRM integration (Salesforce / HubSpot / Zoho / Pipedrive)
  • Helpdesk integration (Zendesk / Intercom / Linear / Freshdesk)
  • Up to 5 intent flows
  • Lead qualifier and outbound caller modes
  • Warm handoff with full conversation context
  • 2 rounds of revisions

Voice Fleet

Multiple agents across departments. Regulated industries. Custom integrations.

from $89,995

from $250,000 typical

Sierra year-one midpoint

BUILDS IN 10-14 DAYS

  • Everything in Customer Support Line
  • Up to 3 distinct agents (e.g. Sales / Support / Operations)
  • Custom integrations (internal APIs, ERP, EHR)
  • HIPAA-compliant deployment on request
  • SOC 2 posture (private VPC, no third-party log retention)
  • Multi-region data residency
  • Dedicated build team
  • Unlimited revisions during build window

Bespoke

Anything you can imagine.

from $129,995

custom typical

PolyAI custom contract floor

BUILDS IN 14-30 DAYS

  • Everything in Voice Fleet
  • Custom architecture (air-gapped, voice + multimodal, fleets at scale)
  • PCI / HIPAA / GDPR-compliant builds
  • Multi-region deployment
  • Custom voice cloning / proprietary persona
  • Dedicated senior team for the build
  • Dedicated SRE for production

Every build price above is fixed once we agree on scope.

ROI · INDUSTRY MATH

Cheap per call. And it doesn't sleep.

Drag the sliders. The math updates live. All baselines come from published industry data, not our clients' results.

MONTHLY CALL VOLUME5,000 calls
AVERAGE CALL DURATION3 min

USE CASE

WITH HUMANS · MONTHLY

$22,500

WITH DEEP MIST · MONTHLY

$2,250

ANNUAL SAVINGS

$243,000

77%

of L1-L2 support calls handled by AI

SALESFORCE 2026 INDUSTRY DATA

5× to 20×

cheaper per call vs human agent

CLOUDTALK 2026 BREAKDOWN

$4,200 → $480/mo

property mgmt firm, real case study

MASTEROFCODE 2026 INDUSTRY CASE

3 to 6 months

typical payback period

AIRCALL 2026 INDUSTRY DATA

Industry math, sourced above. Your numbers will be your numbers. We'll model them with you before anyone signs anything.

HOW WE'D BUILD YOURS

From your phone problem to live. In days, not quarters.

1 to 10 business days from discovery to production. Less than the typical agency takes to send the first deck.

1

Discovery

0 to 1 day

We listen to your phone problem. You walk us through what gets asked, who answers it today, what's missing. We pick the tier with you. You write nothing.

2

Build

2 to 7 days

Custom prompt and persona. Telephony hooked into your existing number or a new one. CRM, calendar, helpdesk integrations wired up. Recording, transcript, monitoring stack in place.

3

Pilot

0 to 1 day

The agent goes live with a slice of your traffic (or a parallel test number). You listen to actual calls. We iterate on the prompt within hours, not weeks.

4

Production

Day 0 onward

Continuous monitoring. Weekly review for the first month. We hand over the keys, you tell us when to come back.

  1. DAY 0
  2. Front Desk

    3-5d

  3. Customer Support Line

    7-10d

  4. Voice Fleet

    10-14d

  5. Bespoke

    14-30d

  6. Typical agency: 6 to 18 months →

Front Desk

3-5d

Customer Support Line

7-10d

Voice Fleet

10-14d

Bespoke

14-30d

Typical agency: 6 to 18 months →

DAY 0

Most agencies are still writing the proposal when we're shipping the pilot.

Bring us your phone problem. We'll show you the working version.

Tell us the problem, the constraint, and what success looks like. We'll reply with a real number and a real timeline.

Start a project