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AI Voice & Customer Care Automation System for BusUp

BusUp (Stefan Fabrizio Bianca & Thibaud Kistler)Feb 20, 2026Signed
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1. Opening

BusUp operates corporate transportation across 5 countries with 16 agents handling thousands of customer interactions weekly. Voice calls create bottlenecks—agents locked into 5-10 minute calls while 50 passengers simultaneously demand updates when a bus breaks down.

2. Your Problem Areas

Current customer care can't scale with operational reality. Agents need encyclopedic knowledge of 30+ client-specific policies (Amazon vs. BBVA vs. SpaceX protocols), field simultaneous peak-demand spikes, and operate 24/7 across Portuguese, Spanish, and English. Voice channel wait times spike during incidents, driving dissatisfaction despite decent average metrics.

Agent Capacity Ceiling

Each voice call blocks an agent for 5-10 minutes. WhatsApp agents handle multiple chats concurrently—voice agents can't. During bus breakdowns, 50 people call simultaneously and wait.

Peak incidents create compounding wait times. Customer dissatisfaction spikes exactly when service recovery matters most.

Knowledge Fragmentation Across Clients

Every corporate client has unique policies (reimbursement rules, escalation protocols, SLA variations). Agents must recall dozens of edge cases mid-call or put customers on hold to check with traffic teams.

High error rate. Mistakes create complaints. New agents take weeks to onboard. Institutional knowledge lives in people's heads, not systems.

Multi-Language Ops Without Redundancy

Voice support requires live Portuguese/Spanish/English coverage across Brazil, Europe, US. Current team structure means limited flexibility and high staffing overhead.

Can't scale geographically without linear headcount increases. Some markets underserved because language coverage isn't cost-effective.

Real-Time Event Intelligence Gap

When traffic team detects an issue, customer care must be manually notified. When passengers call first, agents query traffic mid-call. No unified live event feed.

Duplicate work. Delayed responses. Customers explain problems multiple times. Service recovery becomes reactive instead of proactive.

3. Your Solution

We're building a production-grade AI voice agent on Retell infrastructure that answers every call instantly, executes your 30 pre-mapped contact reason flows, queries your dashboard APIs in real-time, and escalates with full context only when necessary. The system handles identification, client-specific policy application, live event correlation, and warm transfers—eliminating wait times and freeing your team to handle only complex exceptions.

Multi-Flow AI Voice Agent

Handles all 30 contact reasons with branching logic matching your documented workflows—identification, complaint logging, cancellation, lost items, service status.

Instant call pickup. Zero wait time. Resolves routine inquiries end-to-end without agent involvement.

Real-Time API Integration Layer

Queries your dashboard for passenger data, validates phone numbers, checks service status, opens Zendesk tickets, and logs JIRA operations tickets mid-conversation.

Agent has live context. No hold time to "check the system." Automatic ticket creation with full call transcript.

Client-Specific Policy Engine

Loads knowledge base rules per corporate client (Amazon reimbursement policy vs. BBVA escalation protocol) and applies correct logic based on caller identification.

Eliminates policy errors. Every caller gets treatment matching their company's contract without agent memorization.

Intelligent Escalation with Warm Transfer

Agent recognizes edge cases (mismatched phone number, frustrated tone, missing data) and transfers to live agent with summary intro: "Passenger João called about bus 19, already confirmed breakdown, needs Uber authorization."

Human agents only handle exceptions. They receive full context—no repeated explanations. Higher resolution quality.

Multi-Language Voice Support (PT/ES/EN)

Concurrent call handling across Portuguese (BR/PT variants), Spanish, and English using Retell's voice infrastructure.

Instant geographic scalability. Serve Europe and LATAM with same system. Add languages without hiring.

4. Why Us

We've spent two years building AI revenue systems for real operations—voice agents handling 50+ concurrent calls, CRM-integrated pipelines eliminating 70% of manual work, custom API architectures connecting LLMs to live business logic. Our CTO has 15 years in backend infrastructure. We operate in this space daily—31K YouTube subscribers, an active AI builder community, constant exposure to production deployment reality.

50-Concurrent-Call Voice System Delivered

Built and stress-tested a Retell voice agent handling 50 simultaneous inbound calls. It worked. We know the infrastructure limits and how to architect around them.

31,000+ Subscribers Learning Our Builds

We teach AI system design publicly. Hundreds of thousands watch our implementations. We don't hide our methods—we operate in the open and refine under real scrutiny.

70%+ Manual Work Reduction for B2B Clients

Our systems replace 15-30 hours per week of repetitive work. We've integrated CRMs, automated qualification flows, and built lead-gen engines that produce high-ticket pipeline.

5. Why That Matters to You

  • We understand customer care operations—your agents are stuck on calls because voice doesn't scale like chat. We've solved this exact constraint before.
  • We build custom API layers daily. Connecting to your dashboard, querying passenger data mid-call, opening Zendesk tickets—this is our standard workflow, not a learning curve.
  • We've mapped complex multi-flow logic where context switches matter (your 30 contact reasons with escalation points). We know how to structure branching trees that don't break under edge cases.
  • We operate as builders, not consultants. Our CTO writes the code. You're not getting a middleman—you're getting the engineering team that ships.

You need a system that works under pressure when 50 people call about the same broken bus—not a demo that sounds good in a meeting.

6. Our Team

Bosar Agency was built by people who got tired of seeing "AI solutions" that were just repackaged templates with no operational backbone. Our founder spent years in tech and sales, building actual revenue systems—not prototypes. In 2023, when AI tooling matured enough to be production-ready, we went all-in on designing automation that directly impacts acquisition, qualification, and conversion.

Our CTO has 15+ years in backend systems and scalable infrastructure. He's built software that handles real user load, real edge cases, real failure modes. When we say we've stress-tested a 50-concurrent-call voice agent, it's because he architected it and watched it run under live traffic.

We also run an AI education platform and community—31,000+ YouTube subscribers, an active fellowship of builders. We're not isolated in client work. We're constantly exposed to new tools, new architectures, and real implementation feedback from hundreds of operators. This keeps us sharp. We teach what we build, and we build what we teach. You're hiring a team that operates in this space every day, not one that Googles solutions when you ask hard questions.

7. What Working With Us Looks Like

01. Discovery & Flow Mapping (Week 1)

We audit your 30 contact reason workflows, identify API endpoints needed, map escalation triggers, and document client-specific policy rules. We'll need access to your Zendesk setup, dashboard API docs, and a working session with your traffic + customer care leads.

This eliminates scope creep. We define exactly what the AI handles vs. what escalates before writing a single line of code.

02. Infrastructure Setup & API Build (Weeks 2-3)

We configure Retell voice agent infrastructure (EU + Brazil server compliance), build custom API integration layer to your dashboard, set up Zendesk ticket automation, and create JIRA logging endpoints. We'll also load your knowledge base and client policy rules.

The agent is only as smart as its access to real-time data. This phase makes it operational, not theoretical.

03. Core Flow Development (Weeks 4-5)

We build the primary contact reason flows—identification, complaint logging, service status, cancellation—with full branching logic, guardrails, and warm transfer protocols. Includes Portuguese, Spanish, and English language models tuned to your terminology.

We start with highest-volume use cases so you see ROI fast. Remaining flows added iteratively based on call data.

04. Testing & Iteration (Week 6)

We run internal test calls simulating edge cases (mismatched caller ID, frustrated tone, missing data). You run parallel tests with your team. We refine based on failure modes. System goes live with monitoring + escalation fallback active.

AI agents break in unexpected ways. We find the breaks in controlled testing—not in front of your customers.

05. Live Deployment & Monitor Mode (Week 7)

Agent goes live on a percentage of inbound calls (you choose the split). We monitor real conversation transcripts, track escalation rate, measure resolution accuracy. Daily check-ins first week, then async updates.

Gradual rollout protects service quality. We catch real-world edge cases and tune before full traffic hits.

06. Scale & Optimize (Week 8+)

Based on live data, we expand to remaining contact reason flows, optimize API query speed, reduce unnecessary escalations, and refine policy logic. Retainer phase begins if you want ongoing iteration.

AI systems improve with real usage data. First version solves 60-70% of calls. Optimization pushes that to 85%+.

8. Investment

ItemAmount
Discovery, Flow Mapping & Infrastructure Setup$8,500
Core AI Voice Agent Development (Multi-Flow, API Integration, Multi-Language)$18,500
Testing, Deployment & 30-Day Launch Support$6,000
Monthly Retainer (Optional: Ongoing optimization, new flow development, monitoring)$4,500/mo

Your 16-agent team handles thousands of calls weekly. If the AI resolves even 40% of voice inquiries autonomously, that's 6-7 FTE-equivalent hours freed daily—roughly 160 hours per month. At $15/hr blended rate, that's $2,400/month in capacity unlocked, plus elimination of peak-demand wait time complaints. System pays for itself in 90 days. Add in multi-language scalability without hiring, and you've built infrastructure that supports geographic expansion at zero marginal labor cost.

9. Services Agreement

SERVICES AGREEMENT

Recitals

This Services Agreement ("Agreement") is entered into between Bosar Agency ("Service Provider") and BusUp ("Client") for the design, development, and deployment of a custom AI voice agent and customer care automation system as described in the attached proposal.

Term

This Agreement begins upon signature and continues until all deliverables are completed and accepted, or until terminated by either party with 14 days written notice. Monthly retainer services, if elected, continue on a month-to-month basis and may be canceled with 30 days notice.

Fees and Payment Terms

Client agrees to pay Service Provider the fees specified in the Investment section. Payment is due Net 7 days from invoice date. Late payments accrue interest at 1.5% per month. Service Provider may suspend work if payment is more than 10 days overdue. Monthly retainer fees are billed on the 1st of each month and are non-refundable.

Client Responsibilities

Client will provide timely access to systems, API documentation, knowledge base materials, and subject matter experts as reasonably requested. Client will respond to Service Provider requests for feedback and approval within 5 business days. Delays caused by Client may extend project timeline without additional cost to Client but do not reduce Service Provider's fee.

Intellectual Property

Service Provider retains ownership of all pre-existing intellectual property, frameworks, and methodologies. Upon full payment, Service Provider grants Client a perpetual, non-exclusive license to use all custom code and configurations developed specifically for Client under this Agreement. Client retains ownership of all proprietary business data, knowledge base content, and client-specific materials provided to Service Provider.

Confidentiality

Both parties agree to maintain confidentiality of proprietary information disclosed during the engagement for a period of 3 years following Agreement termination. This obligation does not apply to information that is publicly available, independently developed, or required to be disclosed by law.

Indemnification

Each party agrees to indemnify and hold harmless the other party from any claims, damages, or expenses arising from (a) breach of this Agreement, (b) negligence or willful misconduct, or (c) violation of applicable laws. Service Provider is not responsible for Client's use of deliverables in a manner inconsistent with documentation or industry standards.

Limitation of Liability

Service Provider's total liability under this Agreement, whether in contract, tort, or otherwise, shall not exceed the lesser of $500,000 or the total fees paid by Client in the 12 months preceding the claim. Neither party is liable for indirect, incidental, consequential, or punitive damages.

General Provisions

Service Provider is an independent contractor, not an employee or agent of Client. This Agreement is governed by the laws of Poland. Any disputes will be resolved through binding arbitration in Warsaw, Poland. This Agreement constitutes the entire agreement between the parties and supersedes all prior discussions. Modifications must be in writing and signed by both parties.

IN WITNESS WHEREOF, the parties have executed this Agreement as of the date signed below.

CLIENT: BusUp

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SERVICE PROVIDER: Bosar Agency

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newseaco@gmail.com

Feb 20, 2026