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Services / flagship / Build 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.
flagship graph
Surface ⇄ System
- price
- from $1,800
- timeline
- 3 weeks
- mode
- build
price
from $1,800
timeline
3 weeks
cadence
one-time
scope
One-time / fixed scope
TwilioLLM (GPT-4 / Claude)ElevenLabs / DeepgramCall scoringCRM syncReal-time analytics
// compare the flagship suite
Compare flagship offers
Five engagements. Pick what matches your situation.
| Engagement | Price | Timeline | Mode | Best for | Action |
|---|---|---|---|---|---|
AI Implementation Consulting | from $1,000 | 2 weeks | Audit | Don’t know where AI fits | View |
AI Agent Development | from $2,600 | 4 weeks | Build | Repetitive ops work eating your week | View |
AI Voice AgentYou’re here | from $1,800 | 3 weeks | Build | Missed inbound calls | — |
AI Lead Engine | from $2,200 | 4 weeks | Build | Targeted outreach without spam | View |
Agent Operations Retainer | from $600/mo | Monthly | Operate | Already shipped — keep it sharp | View |
01// why this exists
A voice agent that handles the calls you keep missing.
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 — no markup on tokens
Eval harness
Regressions caught in CI before they reach production
Spend cap
Hard ceiling you set — no surprise OpenAI invoices
Human-in-loop
Approval queue on every action that touches money or customers
02// how it works
The architecture, end to end.
No black boxes. Here's the actual shape of the system you get — with the guardrails, eval loops, and human approvals where they belong.
Voice Agent flow
Caller dials → voice in/out → reasoning → your CRM and calendar.
inputcoretooloutputguard
03// listen in
A real call, scripted from a 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
- AgentHi, 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.
- 01
After-hours reception
Books the appointment, captures the lead, sends a confirmation — while you sleep.
- 02
Appointment scheduling
Two-way calendar sync. Reschedules, cancels, and reminds without staff time.
- 03
FAQ deflection
Hours, pricing, location, scope — answered consistently every single time.
- 04
Lead qualification
Asks the 3-5 questions you’d ask, scores the lead, routes hot ones to a human.
04// what you walk away with
The outcome, not just the output.
- 01A voice agent owning one specific phone workflow end-to-end
- 02Call recordings + transcripts + scores you can review
- 03CRM sync so qualified leads or booked appointments land in your pipeline automatically
- 04Monthly performance report with conversion + cost-per-call
- 05Human 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.
// your command center
The dashboard you actually use.
Every flagship engagement ships with a control panel — 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.
agent.v1.4
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.
80% alertEstimate 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.
05// methodology
How the engagement actually runs.
Concrete phases, concrete artifacts. You always know where we are and what comes next.
- 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 - 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 - 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
// track record
Receipts, not promises.
- 3 weeks
- Typical delivery · spec to live calls
- $0.10–$0.50
- Cost per call · all-in (telco + LLM + TTS)
- 24/7
- Coverage · never misses a call
06// scope
Concrete artifacts you keep — and what we leave out.
Working code, written docs, dashboards your team owns. We also list what this engagement deliberately does not cover, so scope is honest before you sign.
// deliverables
- 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
- 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
+$600Add 1–2 additional languages with native-quality voice and grammar.
SMS follow-up
+$360Agent sends a follow-up SMS with confirmation, recap, or next steps after every call.
Call sentiment scoring
+$480Automated sentiment + intent scoring on every call for QA + coaching.
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
How we reduce risk
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.
07// questions
Honest answers.
01Will 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.
02What 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.
03How 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.
04Can it handle Spanish / French / etc?
Yes — multilingual is an add-on. We support any language the underlying LLM and TTS provider support.
05Is 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.
// engage
Ready to scope Voice Agent?
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.
automation system
From offer to operating system.
AI Voice Agent is presented as a real engagement, not a generic service page: the surface, backend shape, delivery artifacts, and conversion path are all visible before the first call.
Scope Voice Agentautomation system
Surface ⇄ System
- price
- from $1,800
- timeline
- 3 weeks
- tier
- flagship
price
from $1,800
timeline
3 weeks
tier
flagship
Living architecture
Scope ⇄ Ship
The page now exposes how the engagement moves from buyer pain to production artifact, then into measurement and next-step routing.
Scope Voice Agent- 01Workflow designLock the use case (qualification / booking / FAQ / recovery). Map the conversation flows, edge cases, escalation triggers. Design the knowledge base + integrations.
- 02BuildStand up the Twilio number, wire the LLM + TTS, build the workflow logic, integrate the CRM. Internal test calls.
- 03Tuning + launchCalibrate against real-sounding scenarios, build the dashboard, set up monthly reporting. Soft launch with controlled volume, monitor and tune.
Conversion path
Surface ⇄ System
01
Diagnose
Confirm the real automation constraint, current surface, and business goal before writing code.
02
Design the system
Turn the offer into screens, data, workflows, ownership boundaries, and a measurable delivery plan.
03
Ship the artifact
Deliver Voice Agent as working code, docs, dashboards, or launch assets your team can actually use.
04
Route the next move
Decide whether the work becomes a one-time delivery, a care plan, or a larger product build.
Proof assets
Real only
Asset slot
Service proof visual
Add a real screenshot, deliverable preview, or dashboard capture from a shipped engagement when approved.
Verified asset
Founder/operator photo
Real founder photo reinforcing principal-led delivery.
Asset slot
Client quote or logo
Add only permissioned testimonials or logos tied to this service category.