Sempera

The line that's always open.

AI phone agents that sound like your best employee.

You run your business. We run your phones. The agent picks up the instant the phone rings, every time: orders, bookings, and quotes go straight into your systems, and the tricky calls hand off to your team. Nights, weekends, and your busiest hour.

7-day free trial with all features. Cancel anytime. No credit card required.

Answers instantly, 24/7Warm transfer to your teamAny language, same line
An operator, always connected.

Every missed call is a customer you already paid for.

The phone is still how your highest-intent customers show up. At peak, most of them hear ringing, then give up and order somewhere else.

85%

of restaurant calls go unanswered during peak hours.

Source: Slang AI

15-20%

of potential revenue is lost to missed calls.

Source: Sector studies

87%

fewer missed calls after adding a voice agent.

Source: Hostie AI

All figures from original published studies. Citations on request.

Press play. That's the product.

An order at peak, a booking mid-service, a 2am emergency. Three calls, three industries, three jobs done. No hold music, no voicemail.

FRIDAY, 6:42 PM

Peak-hour pizza order

00:01

Agent Thanks for calling Marco's Pizzeria, this is Anna! What can I get started for you?

00:06

Caller Hey, can I get a large pepperoni, extra cheese, and a Caesar salad?

00:14

Agent Got it, a large pepperoni with extra cheese and a Caesar salad. Want to add two pops and garlic bread to make it a family combo for six dollars more?

00:26

Caller Yeah, sure. Let's go for it.

00:29

Agent Awesome, I've got that added on. Is this for pickup or delivery?

00:34

Caller Delivery, please.

00:37

Agent What's the address for delivery?

00:40

Caller It's 25 Birchmount Avenue, unit 4.

00:47

Agent 25 Birchmount Avenue, unit 4. What's the best phone number to reach you?

00:53

Caller 416-555-0142.

01:01

Agent Perfect, 416-555-0142. That's thirty-eight fifty all in, and it'll be at your door in 35 to 40 minutes.

01:16

Caller Great, thank you so much.

01:20

Agent Perfect, you're all set. It'll be there soon!

WEDNESDAY, 2:10 PM

Salon booking, every chair full

00:02

Agent Thanks for calling Velvet Salon, this is Diana! How can I help you today?

00:05

Caller Hi, I was hoping to book a balayage with Priya, sometime Saturday?

00:12

Agent I can help with that! Priya has openings this Saturday at 10:30 or 2:00, just keep in mind balayage runs about three hours. Which works best for you?

00:25

Caller Let's do the 10:30.

00:28

Agent Got it, I've booked you for 10:30 with Priya. Could I get your first name and cell number for the confirmation text?

00:36

Caller It's Rob, and the number is 416-555-0142.

00:45

Agent Thanks Rob, I've got 416-555-0142. You'll get a confirmation text in a minute, and a reminder on Friday. We'll see you Saturday!

00:58

Caller Perfect, see you then.

01:01

Agent Bye!

JANUARY, 2:37 AM

No-heat emergency, job booked

00:01

Agent You've reached True North Heating's emergency line, this is Lana. I can help right away. What's going on?

00:08

Caller Hey, my furnace just died and the house is getting cold fast.

00:13

Agent Any smell of gas, or is a carbon monoxide alarm going off?

00:18

Caller No, nothing like that.

00:22

Agent Good. I have the first emergency slot at 7 am. What's the address?

00:28

Caller 418 Maplewood Drive.

00:34

Agent 418 Maplewood Drive. What's your name and best callback number?

00:40

Caller Rob, and it's 416-555-0142.

00:48

Agent 7 am at 418 Maplewood Drive.

00:55

Caller Yeah, thank you. That's a relief.

00:59

Agent If anything changes overnight, call back and I'll escalate to the on-call tech right away. Stay warm.

01:07

Caller Thank you so much, have a great night.

01:10

Agent You're welcome. Goodbye.

Same agent, your industry: Restaurants & QSR · Salons & Spas · Clinics & Appointments · HVAC · Plumbing · Electricians · Construction & Contractors · Law Firms · Real Estate · Property Management · Accounting. Size what missed calls cost yours.

Real recordings of our live agent. The businesses are demo scenarios; the voice and the calls are real.

What is your phone line leaking?

Pick your business, set two dials, and see what going to voicemail costs.

Assumes 60% of missed callers would have placed an order, a conservative figure against published studies. Estimate only; we run your real numbers together on the first call.

Missed calls / month

300

Estimated lost revenue / month

$6,300

Over a year

$75,600

Run your real numbers with us

You run your business. We run your phones.

Sempera is a managed service, not another app to learn. We build your agent, run it, and keep tuning it, so every call gets answered and your people stay focused on the work in front of them.

INFRASTRUCTURE

Reliability on every call.

Everything we ship runs on hardened, monitored infrastructure. Your data and models stay yours, no third parties, no surprise changes.

Sempera
BUILD

Your agent, built for you. Zero tech skills needed.

Tell us how your business runs. We build the agent, wire it into your calendar, POS, or CRM, and you approve every word before it takes a live call.

Help me build an agent…
TEST

Test every scenario before going live.

We run thousands of edge cases against your agent before it ever touches a real customer.

1,003scenarios
0
Failing
0
Fixed
0
Reruns passing
Rolloutstaging
OMNICHANNEL

Deploy one agent across many channels.

Customer interactions across Voice, SMS, iMessage, and Web Chat. Unified memory means your agent never loses context regardless of channel.

Voice
SMS
iMessage
Web Chat
Unified memory
Context synced across every channel
OBSERVABILITY

See exactly what happens, every time.

Watch calls in real time for enterprise-grade QA.

18:45:07 live

Warm-transferred a catering question.

Handed to the manager with full context, 4 seconds.

18:44:32Quoted pickup at 25 minutes.
18:43:59Offered one upsell, accepted.
18:42:41Took the order and read it back.
18:42:18Answered on the first ring.
INTEGRATIONS

Plugs into your existing stack.

Works with your current telephony, CRM, and scheduling stack. Bring any software or tool with zero friction.

Twilio
Twilio
Telephony
Salesforce
Salesforce
CRM
HubSpot
HubSpot
CRM
Slack
Slack
Messaging
Notion
Notion
Productivity
Zapier
Zapier
Automation
Genesys
Genesys
Contact center
Five9
Five9
Contact center
NICE CXone
NICE CXone
Contact center
Talkdesk
Talkdesk
Contact center
Amazon Connect
Amazon Connect
Contact center
Make
Make
Automation
Calendly
Calendly
Scheduling
Cal.com
Cal.com
Scheduling
Pipedream
Pipedream
Automation
SIP
SIP
Telephony
Sempera SMS
Sempera SMS
Messaging
Custom API
Custom API
Custom

Your phone line has options. Most of them lose.

VoicemailIVR menuCall centreSempera
Answers at peakCallers hang upQueues and holds~Until agents max outEvery call, instantly
After hours~Takes messagesClosed menu~At a premiumSame service, 24/7
Takes the order end to endRoutes, at bestHuman speedStraight into your systems
Knows your menu~After training cyclesTrained and updated by us
Hands off to your team~Blind transferWarm, with context
Cost shape~Free, and it loses orders~Cheap, and callers hate itPer minute, adds up fastFlat managed service

The questions every operator asks.

no. the agent catches the calls your team physically can't get to, and hands them the ones that need a human. your people spend their time on the customers in front of them; the agent covers the rush, the night shift, and the holidays. augment, not replace.

The line that's always open. Starting with yours.

One call. We size the leak, play you the agent, and scope a pilot on a slice of your line.

[email protected]

Book a call. Bring your call volume.

Thirty minutes. We size the leak on your line, play you the agent, and scope a pilot slice.

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