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AI Cold-Calling Workflow Using n8n, Google Sheets & Twilio I am looking for a developer experienced with n8n, Twilio Voice, and Google Sheets integration to build a fully automated AI calling system. Objective Create a workflow where AI will cold call potential car buyers who have previously enquired about a car, read details from a Google Sheet, interact conversationally, and update the sheet in real-time based on the call outcome. Workflow Requirements Google Sheet Structure (Example: "Leads" Sheet) Column A – Customer Phone Number Column B – Customer Name Column C – Car Model Enquired About Column D – Interested? (Yes/No) Column E – Appointment Date & Time Column F – Interested in Similar Cars? (Yes/No) Column G – Customer Email Call Flow (AI Voice via Twilio) AI calls the number in Column A. When answered, AI greets the customer by name from Column B: "Hi [Name], I’m calling because you recently enquired about one of our cars. Are you still interested in the [Car Model from Column C]?" Based on the customer’s reply: If "Yes" → Ask if they’d like to book another appointment. If yes, collect preferred date & time → update Column E. If "No" → Ask if they are interested in similar cars. If yes, check Column G for email: If empty, ask for their email and update Column G. If email is available, proceed. Send them an email with a list of similar cars (email template provided). If no → Thank them and end the call. Update Column D with Yes/No for initial interest. Update Column F with Yes/No for interest in similar cars. Technical Requirements Workflow built in n8n (self-hosted or cloud). Twilio Voice integration for AI-driven, natural conversation. Real-time read/write to Google Sheets. AI conversation logic should handle variations in customer responses. Automatic email sending via Gmail, SendGrid, or other suitable service. Deliverables Fully functional n8n workflow. Documentation on setup, configuration, and how to edit the call script. Testing with sample leads to confirm accuracy of call flow and Google Sheets updates. Skills Needed n8n automation workflows. Twilio Voice & AI conversational setup. Google Sheets API integration. Email automation. Additional Notes Calls must sound human and be able to adapt to different answers.
Project ID: 39690370
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Hello Khalilur, I can build a robust n8n workflow that uses Twilio Voice and Google Sheets to run AI cold-calls, update lead rows in real-time, and send follow-up emails. I will speak use Twilio + an LLM voice pipeline so calls sound natural, handle varied replies, and write outcomes back to your sheet. I’ll deliver full documentation, test with sample leads, and iterate during a short trial to ensure reliability. Happy to coordinate access and run an initial pilot to prove performance. Budget: £300–£400 Deadline: 5–6 days (includes testing and documentation)
£300 GBP in 5 days
4.4
4.4
101 freelancers are bidding on average £597 GBP for this job

Our clients usually achieve 30% more appointments after we automate their calling process. I propose to build a fully automated AI cold-calling system using n8n, Twilio, and Google Sheets. Here’s how we’ll approach this: - Create a workflow that reads customer details from your Google Sheet. - Use Twilio Voice to deliver a natural-sounding AI conversation. - Update the Google Sheet in real-time based on call outcomes. In a similar project for a car dealership, we increased appointment bookings by 25% by implementing a streamlined AI calling workflow that adapted to customer responses. As a starting point, consider using clear call scripts that allow flexibility for varied answers, ensuring a more human-like interaction. Let me know if you want a quick plan or if you'd like to discuss this further.
£750 GBP in 7 days
6.0
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Hello Mohammed R., I have read the project details and understood the overall requirement. I am Abdul, with 5 years of experience in Twilio, Automation, OpenAI, AI Text-to-speech, AI Chatbot Development, and n8n. I have successfully delivered multiple projects in the same domain. For the Automated AI Phone System Development project, I propose to create a seamless workflow using n8n, Google Sheets, and Twilio Voice integration. The AI will cold call potential car buyers, interact conversationally based on the Google Sheet data, and update the sheet in real-time. You can view my portfolio here: https://www.freelancer.com/u/mannanmaan1425 Please ping me back so we can discuss the project further in the chat. Best regards, Abdul
£250 GBP in 7 days
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Hi, Mohammed. Not long ago, I built an automated appointment scheduling system that used Twilio Voice, Google Sheets, and AI to qualify leads and update records in real time. That project gave me a lot of hands-on experience creating life-like voice interactions and connecting multiple systems together seamlessly. I’ve been working in automation, AI communication, and API integrations for over 10 years, delivering tools that work smoothly and actually make life easier for sales teams. For your workflow, I’d set up n8n to pull details from Google Sheets, have Twilio’s AI call each lead, and guide the conversation naturally based on their responses. All the updates from interest level to appointment times would write straight back to the sheet in real time so nothing gets lost. I’d also add automated follow-up emails for leads interested in similar cars. On the technical side, this means building reliable speech-to-text handling, smart conversation branching, solid error handling, and secure connections to all your services. The end result would be a tested, documented system that sounds human, works reliably, and keeps your lead data always up to date. I look forward to working on this project. Thanks.
£500 GBP in 7 days
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Hi there, I have a few questions based on the shared description: 1) Which AI voice or NLP service do you prefer for handling natural conversations with Twilio? 2) Do you have an existing email template ready for sending similar car offers? 3) How frequently do you want the workflow to run or trigger calls from the Google Sheet? I can build a robust n8n workflow integrating Twilio Voice and Google Sheets to automate your AI cold-calling process with real-time updates. The system will handle dynamic conversational flows, personalize calls, and trigger emails based on customer responses, ensuring smooth lead management. With over 8 years of experience in automation, API integrations, and conversational AI, I deliver reliable, scalable solutions tailored to complex workflows. If you could open the chat window to continue the conversation, that would be great for me. Warm regards Idefco Before we discuss the project, please note that the price is a placeholder only.
£500 GBP in 7 days
4.9
4.9

Everything in my bid is 100% correct and this is human. Let's make this fully automation system a success together. I #1 senior AI developer on freelancer.com with n8n, Twilio Voice, and Google Sheets integration. please, check profile.
£500 GBP in 7 days
4.9
4.9

Hi, I can design and deploy a fully automated n8n workflow integrating Google Sheets, Twilio Voice (with AI-driven natural conversation), and email automation to handle your cold-calling process end-to-end. I have experience creating conversational AI flows over Twilio using GPT-based prompt logic and speech-to-text (STT) + text-to-speech (TTS) for a human-like call experience. Google Sheets will be connected through n8n’s API nodes for real-time read/write, ensuring call results instantly update columns D–G. The call script will be dynamic—pulling the customer name, car model, and existing data—while branching intelligently based on "Yes/No" responses and variations. Email automation can be handled through Gmail API or SendGrid, with conditional triggers when customers are interested in similar cars. I’ll provide a fully documented workflow, editable call scripts, and run test calls with sample leads to confirm all logic works before handover. Thanks, Hercules
£500 GBP in 7 days
5.2
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Hi There!!! I have studied your project description very well and fully understand the goal to build a fully automated AI cold-calling workflow using n8n, Twilio Voice, and Google Sheets for real-time customer engagement. I am the best fit for this project because I create seamless automations that connect AI, voice, and data smoothly. * I have experience with Twilio Voice to develop AI-driven natural conversations. * I know how to read and write Google Sheets data live during workflows. * I have used n8n for automating complex flows like call handling and email triggers. My basic services include custom workflow design, database connection setup, testing the full flow, delivering clean source code, and basic documentation on call script management. I have 9+ years experience as a full stack developer. I have built lead follow-up systems with voice automation and CRM updates using Twilio and Google APIs for automotive sales and booking platforms. Looking forward to chat with you for make a deal. Best Regards Elisha Mariam!
£289 GBP in 21 days
4.6
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⭐⭐⭐⭐⭐ Build an AI Cold-Calling System with n8n, Twilio & Google Sheets ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project requirements and see you're looking for a developer to create an AI cold-calling workflow. Look no further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for AI-driven automation. I will build a system that interacts with potential car buyers, updates Google Sheets in real-time, and ensures a smooth conversation flow. ➡️ Why Me? I can easily create your AI cold-calling workflow using n8n, Twilio, and Google Sheets. With 5 years of experience in automation and integration, I specialize in building efficient workflows. I also have a strong grip on AI conversation logic and real-time data handling. ➡️ Let's have a quick chat to discuss your project in detail. I can show you samples of my previous work and how I can bring your idea to life. Looking forward to discussing this with you! ➡️ Skills & Experience: ✅ n8n Workflows ✅ Twilio Voice Integration ✅ Google Sheets API ✅ Automation Setup ✅ AI Conversational Design ✅ Real-time Data Handling ✅ Email Automation ✅ API Integration ✅ Debugging & Testing ✅ Documentation & Setup Guides ✅ Customer Interaction Flow ✅ Data Management Waiting for your response! Best Regards, Zohaib
£350 GBP in 2 days
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With 7+ years of experience in automation, AI integration, and workflow design, I can deliver your AI-driven cold-calling system using n8n, Twilio Voice, and Google Sheets. I have built similar conversational workflows leveraging OpenAI for natural dialogues, real-time data updates, and email automation. My solution will follow your exact call flow, handle varied customer responses, and update sheets seamlessly while sounding human-like. You’ll receive a fully tested workflow with clear documentation for easy customization. Best regards,
£900 GBP in 7 days
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Hi there! Managing leads and calling them manually wastes a lot of time. Setting up an AI calling flow that updates Google Sheets in real time can be tricky and error prone. I will build the workflow in n8n connected to Twilio and Google Sheets so calls read and update the sheet live. I will add AI logic to handle varied replies, book appointments, and collect or send emails as needed. I will provide the fully tested workflow, clear setup documentation, and sample tests so it runs reliably. Do you want the workflow on your n8n instance or should I set up a new one for you? Start chat now.
£500 GBP in 7 days
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My solution will: Monitor incoming Outlook emails linked to HighLevel CRM, filtering out those already linked to existing contacts. Extract sender information from non-contact emails and create new contact records automatically in HighLevel. Apply your specified custom tags dynamically to new contacts for easy segmentation and follow-up automation. Include error handling and logging to ensure no emails or contacts are missed.
£250 GBP in 5 days
3.1
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Hi Mohammed, I can create a complete n8n workflow integrating Twilio Voice, Google Sheets, and email automation to deliver a fully automated AI cold-calling system for your leads. The system will read and update your Google Sheet in real time, handle conversational logic to adapt to various customer responses, and trigger email sending when needed. I’ll structure the workflow into modular nodes in n8n for calls, data updates, and email delivery, making it easy to edit scripts or logic later. Twilio Voice will be configured for natural, human-like interaction, pulling details like name and car model directly from the sheet. Familiar with n8n automation, Google Sheets API, Twilio conversational flows, and email integration, I can ensure a reliable and well-documented setup. Best, Bahram
£250 GBP in 6 days
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Hello, I faced challenges with dynamic AI responses in a similar project, but I found solutions using n8n and Twilio. Your requirements for real-time Google Sheets integration and a natural conversation flow are clear and achievable. I can create a fully automated workflow that updates leads based on call outcomes. My expertise covers Twilio Voice, AI conversational design, and email automation. Let’s build a seamless system to engage potential car buyers effectively.
£500 GBP in 7 days
2.3
2.3

Hello, Dear Mohammed, I am excited about the prospect of developing an automated AI calling system tailored to engage potential car buyers through thoughtful conversations. My experience with n8n, Twilio, and Google Sheets API allows me to create an intuitive workflow that will meet your specifications seamlessly. To carry out the project, I will begin by designing the Google Sheet structure to ensure efficient data retrieval and updates in real time. Using Twilio, I will set up a voice interaction that greets customers by name and engages them based on their previous inquiries. Furthermore, I'll implement AI logic capable of adapting to various customer responses, allowing for smooth interactions while sending emails with targeted follow-ups based on their interests. Could you shed more light on the expected volume of calls and any specific timeframe for implementation? Looking forward to work with you. Best Regards. Denys
£250 GBP in 2 days
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As an accomplished Full Stack Developer with an extensive background in AI Chatbot Development, n8n, and Twilio, I am uniquely qualified to deliver on the vision you have for your Automated AI Phone System. Over the past 6+ years, I've consistently transformed complex technical requirements into reality – a skillset I firmly believe is essential for this project. Drawing from my experience in building multiple conversational AI systems using Twilio and OpenAI GPT (which implements similar workflow logic), I am confident in my ability to create a sound and adaptable conversational framework that brings out the best in your workflow structure. I also have successful experiences integrating Google Sheets API for both read/write operations as well as Gmail integration to automate email sending. Moreover, my strength in RESTful and GraphQL API development will enable me to build a robust and secure n8n workflow that fulfills all your technical requirements while ensuring seamless real-time interaction with Google Sheets. I guarantee a smooth and efficient process from initial setup, through configuration, and to final implementation of your call script.
£500 GBP in 7 days
1.8
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Hi there, I am an n8n verified template creator and have extensive experience with n8n automation workflows, Twilio Voice integration, and Google Sheets API. I can develop a fully automated AI phone system tailored to your project requirements. My approach will ensure interactive, conversational AI that dynamically updates Google Sheets in real-time based on call outcomes. I am confident in delivering a seamless workflow that meets your specifications for engaging potential car buyers. I look forward to collaborating on this innovative project. Best Regards Mohamed
£500 GBP in 7 days
2.0
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Our team of Harvard engineers has a ton of experience. Choose the professional route. Would love to work on this!
£500 GBP in 7 days
1.2
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Hi, I’ll build a reliable n8n + Twilio AI cold-calling flow that reads your Google Sheet leads, conducts natural, adaptive conversations, and writes outcomes (interest, appointment, email) back in real time, exactly as you described for Columns A–G. I’m a full-stack dev and AI solution architect with 15+ years building automation and voice/AI integrations relevant to this workflow. I get it you need calls that sound human, handle response variations, update the "Leads" sheet live, send follow-up emails for similar cars, and capture appointments or emails during the call. The system must be dependable and auditable. I'll implement an n8n workflow that: * reads rows from Google Sheets and enqueues calls, * uses Twilio Voice + an AI NLU layer (OpenAI or similar) plus TTS for natural dialogue, * uses a policy-driven conversation state machine in n8n to collect appointments/emails and branch logic, * updates Columns D, E, F, G in real time and triggers email sends via SendGrid/Gmail, * includes retry, error handling, logging, and test mode with sample leads. Why choose me: * end-to-end delivery: workflow, Twilio config, sheet mapping, email templates, docs * realistic human-like voice + robust NLU for varied replies * audit logging, test harness, and clear edit instructions for scripts * post-launch support and tuning included * similar automation projects & case studies available to share
£500 GBP in 7 days
0.5
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Hi there What TTS/STT pipeline do you prefer for real-time, interruptible calls with Twilio Media Streams (direct to a WebSocket bot) or should I use a webhook-driven flow with an external Realtime model? How should we enforce consent, time-of-day windows, retries, and DNC handling per lead to stay compliant while avoiding spam flags? Cold-call AI must handle interruptions, accents, and latency while extracting entities with high accuracy. Scaling demands rate limits, voicemail detection, and concurrency-safe sheet updates. Solution outline: Twilio Programmable Voice with Media Streams to a Node service that runs a Realtime ASR/TTS model and intent/entity parsing, controlled by n8n. n8n orchestrates lead pick-up, per-lead state machine, Google Sheets read/write with row-level locking, email sending via Gmail or SendGrid, and logging. Entity validation for emails and natural-language date parsing with timezone normalization. Safeguards: per-number throttles, jittered scheduling, voicemail/answering-machine detection, error retries, and audit logs. Deliverables: working n8n workflow, bot service, setup guide, and editable call script with fallback branches. I would be happy to discuss further on chat. Best Oleksandr
£500 GBP in 7 days
0.7
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Hello, As a seasoned developer with two decades of experience, I am well-versed in designing automated solutions like the one you are seeking. My forte is creating end-to-end software that encompasses architecture, delivery, cloud migrations, and legacy system modernization which makes me the perfect fit for your project. I have a strong background in AI and automation entailing chatbots and extensive experience using technologies and tools like n8n, Twilio Voice, and Google Sheets API. Moreover, throughout my career I’ve worked with various industries including banking, finance, energy and retail giving me ample exposure to diverse client requirements and their respective issue resolutions. I've gained hands-on expertise in a range of technical skills such as PHP, Python, .NET, C#, Java, Angular that provide me a proficiency needed to build a state-of-the-art system for you. Not just this but during my tenure I’ve led multi-faceted global teams and driven cloud native applications which stand as a testament to my leadership skills. In conclusion: My strong problem-solving abilities and knack for spotting patterns make me exceptionally skilled at tailor-making smooth workflows like the one you envision. By choosing me for this project, you're not just selecting an experienced developer but entering into a partnership for achieving your fullest vision potential. I will deliver a fully functional n8n workflow that ticks all your box Thanks! Hakan
£500 GBP in 1 day
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