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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 24/7 corporate transportation across 5 countries with 16 agents managing voice, WhatsApp, and email support. When a bus breaks down, 50 passengers call simultaneously — and every agent is locked on 5-10 minute calls while.

2. Your Problem Areas

Voice channels represent 20% of contact volume but cause the majority of friction. Agents can't multi-task on calls, peak demand creates wait times, and each operator needs deep knowledge across 30+ contact flows, dozens of corporate clients, and company-specific policies. The current model doesn't scale.

Voice calls block agents completely

A single 5-10 minute call locks an agent while WhatsApp agents handle multiple cases concurrently. During peak incidents, this creates bottlenecks and long wait times.

Dissatisfaction increases, operational cost per call is 3-5x higher than chat, and agent utilization is severely limited.

Knowledge complexity creates mistakes

Agents must know policies for Amazon, Accenture, BBVA, SpaceX, and dozens of other clients — each with different reimbursement rules, escalation protocols, and service standards.

Long onboarding, frequent errors, policy violations, and frustrated customers who receive inconsistent service.

Real-time incidents require coordination

When buses break down or go off-route, customer care must coordinate with traffic teams mid-call to verify status and approve solutions like Uber reimbursements.

Delays, holds, transfers, and manual cross-team communication add 2-5 minutes per incident call.

No multilingual 24/7 coverage at scale

Supporting Portuguese (BR/PT), Spanish, and English around the clock requires expensive staffing and limits expansion into new markets.

High labor cost, limited language coverage, and inability to scale into new regions without hiring.

3. Your Solution

We're building a production-ready AI voice agent on Retell AI infrastructure that answers 100% of inbound calls instantly, identifies callers via phone number lookup, executes your 30+ contact reason flows, queries your dashboard APIs in real-time, and escalates to human agents only when policy requires it or system data is unavailable. The agent operates in Portuguese, Spanish, and English with warm transfers and full Zendesk ticket integration.

AI Voice Agent (Retell-powered)

Handles unlimited concurrent calls with zero wait time, executing your predefined flows with dynamic routing and real-time decision logic.

Eliminates queue times, scales instantly during incidents, and unblocks agents to focus on high-value escalations.

Multi-Client Knowledge Engine

Stores and retrieves company-specific policies, reimbursement rules, and escalation protocols for every corporate client.

Zero policy errors, consistent service across all accounts, and instant onboarding for new client contracts.

Live API Integration Layer

Connects to your dashboard, CRM, and traffic systems to verify passenger identity, check bus status, validate account data, and create Zendesk tickets in real time.

Agent operates on live data, not static scripts — enabling dynamic responses to incidents and reducing coordination delays.

Flow-Based Conversation Design

Implements your 30+ contact reason flows with flexible routing, guardrails, and warm transfer protocols when escalation is required.

Structured, predictable outcomes with escalation only when necessary — your human agents receive full context before taking over.

European Infrastructure Compliance

Dedicated EU-hosted servers for GDPR-compliant voice processing in Spain and Portugal operations.

Full regulatory compliance without compromising performance or data sovereignty.

4. Why Us

We don't build AI demos. We build production systems that handle real customer interactions under operational pressure. Our CTO has 15+ years in scalable backend infrastructure, and we've deployed AI voice agents handling 50+ concurrent calls with live CRM integrations, API-driven logic, and zero downtime. We operate as engineers and operators — not consultants.

50+ concurrent calls handled

We've stress-tested Retell infrastructure in production with high-volume voice systems that stayed live during peak load.

31,000+ YouTube subscribers

We teach AI system architecture publicly, giving us exposure to cutting-edge tools, real-world feedback, and constant iteration on what works.

15+ years backend engineering

Our CTO has built scalable infrastructure and custom API systems for over a decade — we architect for reliability, not hype.

Custom API integrations across CRMs

We've connected AI agents to Zendesk, HubSpot, custom dashboards, and internal tools — no limitation on what we can query or update.

5. Why That Matters to You

  • We understand how customer support teams operate — we've built systems that integrate into live pipelines and are tested under real operational conditions.

  • We combine technical depth with real-world sales and support experience, so we design around ROI and workflow impact, not just feature lists.

  • We approach every project as operators who've built and deployed AI systems in production, not as consultants selling theory.

  • We actively operate in the AI ecosystem through content, community, and real client deployments — we know what works and what doesn't.

You get a system designed for scale, compliance, and real-world friction — not a proof of concept.

6. Our Team

Bosar Agency is led by an AI systems architect and entrepreneur with hands-on experience building production-ready automation systems for real clients. We don't just design — we deploy systems that integrate into live revenue and support pipelines and are tested under real operational conditions.

Our CTO brings 15+ years of backend engineering, scalable infrastructure, and custom software development experience. Together, we combine technical depth with real-world business operations experience. We've built AI voice assistants, CRM-integrated pipelines, and lead-generation engines that replace 15-30 hours of manual work per week for our clients.

We also operate an AI education platform and community with 31,000+ YouTube subscribers, giving us constant exposure to cutting-edge tools and real implementation feedback. We don't build AI demos. We build production-ready systems tied directly to outcomes — whether that's revenue, operational efficiency, or customer satisfaction.

7. What Working With Us Looks Like

01. Discovery & Flow Mapping

We audit your 30+ contact reason flows, identify which can be automated immediately, map API requirements, and define escalation triggers. We document knowledge base sources and company-specific policies.

Ensures we build exactly what your operation needs — no assumptions, no gaps, no wasted development.

02. API & System Integration

We connect to your dashboard, CRM, and Zendesk. We build or document required endpoints for passenger lookup, bus status queries, and ticket creation. EU infrastructure is provisioned for compliance.

The agent operates on live data, not static scripts — enabling real-time decisions during incidents and reducing coordination delays.

03. Voice Agent Build & Flow Implementation

We design the Retell-powered voice agent with your contact flows, guardrails, warm transfer protocols, and multilingual support. Knowledge engine is loaded with client-specific policies.

This is where the system comes to life — structured, predictable, and capable of handling your most common scenarios autonomously.

04. Testing & Iteration

We run internal tests, then controlled live tests with real inbound calls. We refine routing logic, escalation triggers, and response quality based on real interactions.

No system is perfect on day one — iteration ensures we catch edge cases and optimize before full deployment.

05. Launch & Monitoring

We deploy the agent live across voice channels, monitor performance, track escalation rates, and provide handoff documentation for your team.

You go live with confidence, full visibility into performance, and the ability to maintain or expand the system independently.

06. Optional: Ongoing Development & Optimization

We offer a retainer for continued iteration — adding new flows, refining logic, expanding language support, or building WhatsApp AI agents as next phase.

Automation is never truly 'done' — ongoing refinement unlocks compounding value as your operation evolves.

8. Investment

ItemAmountSystem Design & Flow Architecture$8,500AI Voice Agent Build & API Integration$18,500EU Infrastructure Setup & Compliance$3,500Testing, Iteration & Launch Support$4,500

Total investment: $35,000 for a production-ready system that handles 20% of your contact volume autonomously. If the agent resolves even 30% of voice calls (conservative estimate), you save 1,200+ agent hours per month at 4,000 calls/month volume. That's $18,000-$24,000/month in labor cost at $15-$20/hour blended rate — payback in under 2 months. You also eliminate wait times, reduce dissatisfaction, and unlock capacity for your team to handle complex escalations. Retell usage cost is pay-as-you-go (~$0.10-$0.15/min), so operational cost scales with actual usage.

9. Services Agreement

SERVICES AGREEMENT

Recitals

This Services Agreement ("Agreement") is entered into between Bosar Agency ("Provider") and BusUp ("Client") for the design, development, and deployment of an AI-powered voice agent system and related automation infrastructure as outlined in the attached proposal.

Term

This Agreement begins upon execution and continues until all deliverables are completed and accepted by Client, or until terminated by either party with 14 days' written notice.

Fees and Payment Terms

Client agrees to pay Provider the total project fee of $35,000 USD as outlined in the Investment section. Payment is due within 7 days (Net 7) of invoice date. Late payments will accrue interest at 1.5% per month. Provider reserves the right to pause work if payment is overdue by more than 14 days.

Client Responsibilities

Client agrees to provide timely access to systems, API documentation, knowledge base materials, and key stakeholders for discovery and testing. Client will designate a primary point of contact for approvals and feedback. Delays caused by Client may extend project timelines accordingly.

Intellectual Property

Provider retains ownership of all background IP, frameworks, tools, and methodologies used in delivering services. Upon full payment, Client receives a perpetual, non-exclusive license to use all custom deliverables (AI agent, integrations, flows, configurations) for their internal operations. Provider may showcase the project as a case study unless Client requests confidentiality in writing.

Confidentiality

Both parties agree to keep confidential any proprietary information disclosed during the engagement. This obligation survives for 3 years after Agreement termination.

Indemnification

Each party indemnifies the other against third-party claims arising from their own negligence, misconduct, or breach of this Agreement.

Limitation of Liability

Provider's total liability under this Agreement is capped at the lesser of $500,000 USD or 12 months of fees paid by Client. Provider is not liable for indirect, consequential, or punitive damages.

General Provisions

Provider operates as an independent contractor. This Agreement is governed by the laws of Poland. Any disputes will be resolved through binding arbitration. Amendments require written agreement from both parties.

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

CLIENT: BusUp

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DateSERVICE PROVIDER: Bosar Agency

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Signature

Signature

Signed by biu

newseaco@gmail.com

Feb 20, 2026