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Services·AI Flagship·Build
Flagship engagement

AI Voice Agent

A phone agent that handles one workflow well — measurable, always on, never tired.

Pick one phone workflow that costs you time or money: inbound qualification, appointment booking, FAQ deflection, missed-call recovery. We build a voice agent that owns it. Twilio + LLM + your eval rig. Real recordings, scored conversations, monthly performance report. Not a "voice assistant" — a measurable replacement for one specific phone job.

from $1,800
3 weeksOne-time paymentCustom pricing on request
TwilioLLM (GPT-4 / Claude)ElevenLabs / DeepgramCall scoringCRM syncReal-time analytics

Compare flagship offers

Five engagements. Pick what matches your situation.

See all services
EngagementPriceTimelineModeBest for
AI Implementation Consulting
from $1,0002 weeksAuditDon’t know where AI fitsView
AI Agent Development
from $2,6004 weeksBuildRepetitive ops work eating your weekView
AI Voice AgentYou’re here
from $1,8003 weeksBuildMissed inbound calls
AI Lead Engine
from $2,2004 weeksBuildTargeted outreach without spamView
Agent Operations Retainer
from $600/moMonthlyOperateAlready shipped — keep it sharpView
Why this exists

A voice agent that handles the calls you keep missing.

Phones that pick up. 24/7. Without sounding like a robot.

Inbound calls are still the #1 way customers reach SMBs — and the #1 thing falling through the cracks. We deploy a voice agent that answers, qualifies, books, and hands off cleanly to humans. TCPA-compliant, identifies as AI when asked, never makes outbound cold calls. Wired to your calendar and CRM so every conversation lands somewhere useful.

BYOK
Pay LLM providers direct
Eval harness
Regressions caught in CI
Spend cap
You set the ceiling
Human-in-loop
Approval queue, not auto-send
How it works

The architecture, end to end

No black boxes. Here\u2019s the actual shape of the system you get \u2014 with the guardrails, eval loops, and human approvals where they belong.

Voice Agent flow

Caller dials → voice in/out → reasoning → your CRM and calendar.

contextwhen askedCallerinbound onlyTwilio voicespeech I/OVoice AgentLLM + personaKnowledgeFAQs · pricingIdentifies as AIon requestCalendarbook / rescheduleCRMlog + tag leadHuman handoffwarm transfer
inputcoretooloutputguard
Listen in

A real call, scripted from a real deployment

No recording, no marketing voice-over. A line-by-line walk-through of how the agent handles a typical inbound — including the moment the caller asks if they’re talking to AI.

Voice Agent demo

Sample call — inbound booking

Synthesized for clarity. Real deployments use your business name, hours, and approved scripts.

0:000:28
Transcript1 / 9
  • Agent
    Hi, thanks for calling Riverbend Dental — this is the front desk assistant. How can I help?

Notice line 6 \u2014 if a caller asks “are you a real person?”, the agent identifies as AI and offers a transfer. That guardrail ships on every voice deployment.

Where this fits

Real use cases we ship

After-hours reception

Books the appointment, captures the lead, sends a confirmation — while you sleep.

Appointment scheduling

Two-way calendar sync. Reschedules, cancels, and reminds without staff time.

FAQ deflection

Hours, pricing, location, scope — answered consistently every single time.

Lead qualification

Asks the 3-5 questions you’d ask, scores the lead, routes hot ones to a human.

Your command center

The dashboard you actually use

Every flagship engagement ships with a stylized control panel \u2014 live activity, eval pass rate, spend cap, and an approval queue you can act on from your phone.

Live · Production

Voice Agent — Reception

Live calls + transcripts + booking outcomes.

Calls / 24h
143
+22% vs last week
Answer rate
100%
no missed calls
Booked
37
26% conversion
Avg call length
2m 14s
−18s
Live activity
last 5 min
  • 8sCaller booked appt for Thu 2pm — logged to CRM as warm lead
  • 1mCaller asked "are you a real person?" — agent identified as AI
  • 3mPricing question — agent quoted from approved FAQ — lead captured
  • 5mComplex billing issue — transferred to Sarah (warm handoff)
  • 7mSpam call detected and dropped — no log entry
  • 9mAfter-hours appt request — booked + confirmation SMS sent
Eval pass rate92%
42 / 44 test cases passed · last run 12m ago
Monthly spend$67 / $300
Auto-pause at cap. Slack alert at 80%.
Awaiting approval0
  • Refund request > $250 — review
  • Outbound email batch — 12 ready
  • 1 more queued
Cost forecast

Estimate your monthly run cost

Cost estimator

Forecast your monthly voice cost

Includes Twilio carrier fees + LLM. Pay your providers directly with BYOK.

Volume2,000 minutes / mo
20010,000
Base infra
$65 / mo
Hosting · observability · evals
Variable (LLM + tools)
$180 / mo
≈ $0.09 per minutes
Total monthly
$245 / mo
Forecast — actual capped in prod
Recommended monthly cap: $400 — we set this hard ceiling in production. Agent auto-pauses when hit, with a Slack alert at 80%. You raise it only if you want to.
Estimate uses average token costs and observed agent behavior in similar deployments. Final budget is set with you during scoping and enforced with a hard monthly cap. BYOK supported — pay your provider directly, we don't mark up tokens.
Outcomes

What you get

A voice agent owning one specific phone workflow end-to-end
Call recordings + transcripts + scores you can review
CRM sync so qualified leads or booked appointments land in your pipeline automatically
Monthly performance report with conversion + cost-per-call
Human escalation path when the agent hits its limits
Agent flow

How the agent thinks

The decision graph behind the engagement. Inputs, branches, and the point where a human stays in the loop.

AI Voice Agent PipelineAn inbound call enters automatic speech recognition, which feeds an LLM intent classifier; the LLM dispatches in parallel to CRM, calendar, and knowledge tool calls, then composes a TTS response back to the caller.Inbound CallPSTN / SIPASRtranscriptionLLM Intentclassify + planCRM Toollookup customerCalendar Toolcheck availabilityKnowledge ToolRAG over docsHandoff Toolescalate to humanComposeresponse textTTSvoice outputtextparallelresultsVOICE → CALLER
Methodology

How we run this engagement

Concrete phases, concrete artifacts. You always know where we are and what comes next.

01
Week 1

Workflow design

Lock the use case (qualification / booking / FAQ / recovery). Map the conversation flows, edge cases, escalation triggers. Design the knowledge base + integrations.

Conversation flowKnowledge base specIntegration plan
02
Week 2

Build

Stand up the Twilio number, wire the LLM + TTS, build the workflow logic, integrate the CRM. Internal test calls.

Voice agent live on test numberCRM sync wiredTest recordings
03
Week 3

Tuning + launch

Calibrate against real-sounding scenarios, build the dashboard, set up monthly reporting. Soft launch with controlled volume, monitor and tune.

Production voice agentDashboardMonthly report templateSlack channel
By the numbers

Typical results

spec to live calls
3 weeks
Median delivery
all-in (telco + LLM + TTS)
$0.10–$0.50
Cost per call
never misses a call
24/7
Coverage
Deliverables

What ships

  • Voice agent built on Twilio + LLM with natural-sounding TTS
  • Workflow logic for the chosen use case (qualification / booking / FAQ / recovery)
  • Knowledge base of your business info, hours, services, FAQs
  • CRM sync — qualified calls drop into HubSpot, Salesforce, Pipedrive, GoHighLevel, or sheet of choice
  • Call recording + transcript + scoring pipeline
  • Real-time dashboard: calls handled, qualified rate, average duration, cost-per-call
  • Human escalation flow (warm transfer, callback request, or message capture)
  • Monthly performance report
  • 30 days post-launch tuning + Slack support
Not included

Out of scope

  • Outbound cold calling (we don't build telemarketing bots)
  • Multi-language (single language at launch; add via add-on)
  • Replacing your full phone system (we sit alongside or in front of it)
Add-ons

Extend the engagement

Multilingual support

+$600

Add 1–2 additional languages with native-quality voice and grammar.

SMS follow-up

+$360

Agent sends a follow-up SMS with confirmation, recap, or next steps after every call.

Call sentiment scoring

+$480

Automated sentiment + intent scoring on every call for QA + coaching.

Sample deliverables

See the artifact, not the marketing.

Real shape, redacted content. Pick a tab to preview what ships.

Sample Audit Report

Twelve-page audit excerpt: scope, methodology, findings ranked by impact, and a prioritized fix list. Redacted.

Sample provided after intro call · ask sage@sageideas.dev

SAMPLE · REDACTED
How we reduce risk

Money-back if you're not happy in week 1

Reset the engagement before momentum builds. No invoices to dispute, no awkward email.

Async-first, weekly demos, no surprises

You see exactly what shipped each week. No status meetings to attend, no reports to chase.

Code is yours from day 1 — no lock-in

Your repo, your infra, your accounts. We work in your stack. You can take the work in-house at any time.

FAQ

Honest answers

Will it sound like a robot?

No. We use ElevenLabs / Deepgram for natural-sounding voice, and the agent is scripted to acknowledge it's an AI when asked. Most callers either don't notice or appreciate that it's direct and fast.

What happens when it can't handle something?

It hands off — warm transfer to a human, callback request, or message capture. Default behavior is escalation, not pretending to know.

How much does each call cost to run?

Typically $0.10–$0.50 per call depending on length and complexity. Telephony + LLM + TTS combined. We give you a cost-per-call forecast before we build.

Can it handle Spanish / French / etc?

Yes — multilingual is an add-on. We support any language the underlying LLM and TTS provider support.

Is this compliant?

We follow TCPA + state-level disclosure rules. The agent identifies as AI when asked. Recording disclosure is built in. We don't build dialers or anything resembling outbound robocalling.

Ready to scope this for your business?

Book a 30-minute discovery call. No pitch deck. We'll either confirm fit and send a proposal, or tell you straight that this isn't the right move.

livebuild d7ed89b2026-06-08 06:36Z
// solo studio// no analytics resold// every commit human-reviewed