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Summary AI Voice Agent / ElevenLabs Developer Needed for Automated Appointment Calling System Job Description: We are looking for an experienced AI voice automation developer to help us build a natural-sounding AI phone calling system. The goal is to create an AI voice agent that can call potential clients, speak with them in a very natural and human-like voice, explain our request briefly, and ask them to schedule an appointment or meeting with our team. We are interested in using ElevenLabs, but we are also open to other professional AI voice platforms if you recommend a better solution. Main requirements: Build an AI voice agent that can make outbound phone calls Use a very natural human-like voice The AI should be able to have a simple conversation with clients The AI should ask for an appointment or meeting time The AI should understand basic responses from the customer The system should collect the result of each call Integration with a CRM would be helpful, especially GoHighLevel / GHL Integration with calendar booking would be very useful The system should be able to handle call outcomes such as: Interested Not interested Call back later Appointment booked No answer Wrong number We need proper setup, testing, and training on how to use the system Preferred platforms or experience: ElevenLabs GoHighLevel / GHL Twilio Aircall Retell AI Bland AI Vapi AI Synthflow [login to view URL] / Zapier CRM automation AI voice agents Appointment setting automation Important: The system must be compliant with applicable call regulations, privacy rules, and consent requirements. We want a professional and ethical setup. What we need from you: Please explain: Which platform you recommend for this project Whether ElevenLabs is enough or if another AI calling platform is better How you would connect the AI voice system with our CRM or calendar How long the setup would take Your estimated cost Examples of similar AI voice calling projects you have done before We are looking for someone who can not only build the system, but also explain it clearly and provide step-by-step training. We do not only need technical setup. We also need someone who can train us online and show us how to use, modify, and manage the AI calling system step by step.
Project ID: 40462150
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102 freelancers are bidding on average $21 USD/hour for this job

With over a decade of experience in AI voice agents and high-complexity systems, I understand your goal of creating a natural-sounding AI phone calling system for appointment scheduling. My background in scaling for over 1 million users and high-security setups directly applies to the challenges of ensuring a smooth and efficient AI voice calling experience for your potential clients. For strategic insight, I recommend leveraging a platform like ElevenLabs for its robust AI capabilities and seamless integration with CRM systems like GoHighLevel. With past successes in building and scaling AI systems for large user bases, I am confident in delivering a solution that meets your requirements for natural voice conversations, appointment setting automation, and call outcome handling. I encourage you to reach out to me to discuss the roadmap for implementing the AI voice calling system, including platform recommendations, integration strategies, timeline estimates, and cost considerations. Let's work together to create a professional and efficient AI voice agent that aligns with your project goals and regulatory requirements.
$20 USD in 15 days
8.3
8.3

Hello!! I have carefully reviewed your requirements for an AI voice calling system and clearly understand you need a fully automated outbound calling agent that can handle natural conversations, appointment booking, CRM integration, and call outcome tracking in a structured and compliant way. >>>> Multi languages (English and Portuguese (Brazil) ) <<<< **** You can track the project’s progress using the tracker. I’m available to work 40 hours per week **** I am a full-stack developer with 10+ years of experience in AI automation systems, voice agents, API integrations, and workflow orchestration using tools like Twilio, Make, Zapier, and modern AI voice platforms. I WILL PROVIDE 2 YEAR FREE ONGING SUPPORT AND COMPLETE SOURC CODE, WE WILL WORK WITH AGILE METHODOLOGY AND WILL GIVE YOU ASSISTANCE FROM ZERO TO PUBLISHING ON STORES. For this project, I would recommend using a combination of Twilio + a dedicated AI voice agent platform such as Vapi AI / Retell AI or Bland AI, integrated with ElevenLabs for high-quality voice synthesis. ElevenLabs alone is not sufficient for full conversational calling, but when combined with these platforms, The system will be designed to handle full call flows including appointment booking, CRM updates (GoHighLevel integration), calendar scheduling, and structured disposition tracking (Interested, Not Interested, Call Back, etc.). I can also integrate Make/Zapier workflows to automate post-call actions and reporting. Thanks
$15 USD in 40 days
8.3
8.3

Greetings! I will build an AI voice agent for automated appointment calling using ElevenLabs or Retell AI with Twilio integration. Natural human like voice, simple conversation, appointment request, basic response understanding, call outcome tracking, GoHighLevel CRM integration, and calendar booking. I will provide step by step training. Please share your CRM access and target call volume. Thanks, Revival
$15 USD in 40 days
5.9
5.9

Hi, I can help build a natural AI voice appointment-calling system using platforms like ElevenLabs, Retell AI, Vapi, or Bland AI integrated with Twilio and GoHighLevel for CRM, scheduling, and automated call tracking. I have experience with AI voice agents, workflow automation, appointment booking systems, and integrations using APIs, Make/Zapier, and conversational AI flows with human-like voice interactions. I can also guide you on the best platform choice based on call quality, scalability, compliance, and cost efficiency, while providing full setup, testing, and step-by-step training for your team. Best regards, Shakila Naz
$15 USD in 40 days
5.0
5.0

⭐⭐⭐⭐⭐ ✅Hi there, hope you are doing well! I have developed similar AI voice calling systems that used natural language processing with platforms like Twilio and integrated seamlessly into CRMs for easy appointment scheduling. The most important part is ensuring the AI voice feels very natural and the system correctly interprets client responses to manage call outcomes effectively. Approach: ⭕ I will assess the best AI voice platform balancing natural speech and integration ease, recommending ElevenLabs or an alternative. ⭕ Build the AI voice agent to make outbound calls and handle simple conversations. ⭕ Integrate the system with your GoHighLevel CRM and calendar for real-time booking. ⭕ Ensure call outcomes are captured for follow-up. ⭕ Perform compliance checks with call regulations and privacy rules. ⭕ Provide thorough setup, testing, and hands-on training sessions for your team. ❓Could you share which CRM and calendar software versions you currently use? ❓Do you have existing call scripts or would you like me to help create them? ❓Are there any peak hours or preferred time windows for calls? I am confident I can deliver a professional, compliant, and user-friendly AI voice calling system tailored to your needs. Kind regards, Nam
$25 USD in 16 days
5.2
5.2

Hi, I understand you need an AI voice appointment-calling system that can make outbound calls, speak naturally, handle basic client responses, book meetings, log outcomes, and integrate with CRM/calendar tools like GoHighLevel. ✅ I have experience building AI voice agents using platforms such as ElevenLabs, Twilio, Retell AI, Vapi/Bland-style systems, GoHighLevel, Make/Zapier, calendar booking flows, and CRM automation. For this project, I would recommend using Retell AI or Vapi with ElevenLabs voice, because ElevenLabs alone is mainly voice generation, while Retell/Vapi can manage real-time phone conversations, call logic, outcomes, and integrations. ✅ I can connect the system to GHL, booking calendars, and automations for statuses like interested, not interested, callback, booked, no answer, and wrong number.
$15 USD in 40 days
5.3
5.3

Hello, I am Kaito from Japan. I've built service named talkbase that exactly match your requirements. I can share you more detail if you are interested in. I have extensive experience in developing AI voice automation systems, especially using ElevenLabs and Twilio. I've successfully built similar projects that integrated CRM functionalities and automated appointment scheduling, ensuring a natural and engaging user experience. I recommend ElevenLabs as a solid choice for your AI voice needs, given its superior voice quality and flexibility. You'll save your time & money when you give me a chance. Kind regards,
$20 USD in 40 days
4.5
4.5

Hi, I’m excited about your project to develop a natural-sounding AI voice calling system for automated appointment scheduling. With extensive experience in AI voice agents, especially using platforms like ElevenLabs and Twilio, I can build a system that handles outbound calls with human-like conversations, collects call outcomes, and integrates seamlessly with CRM tools like GoHighLevel and calendar systems. I recommend using ElevenLabs for its voice quality, combined with Twilio for call management and GoHighLevel for CRM integration to create an efficient and compliant calling system. I will ensure proper setup, testing, and provide clear online training on system usage, modification, and management for your team. The setup typically takes about 7 days. With my background in AI voice automation and CRM integration, I will deliver a professional, compliant, and easy-to-use solution. Which CRM and calendar platforms are you currently using or prefer for integration? Best regards,
$15 USD in 38 days
4.8
4.8

At Web Crest, we understand the power of AI in revolutionizing business operations and customer engagement. With my 10 years of experience and a team of seasoned professionals at our disposal, there's no doubt that we're perfectly fitted for your AI Voice Calling System Development project. In light of your desire for a natural human-like voice that can make outbound calls, collect results, integrate seamlessly with your CRM and calendar booking system manned by ElevenLabs or other professional AI voice platforms, rest assured that we have a wealth of knowledge in this aspect. My proficiency in platforms like GoHighLevel, Twilio, and Aircall coupled with our broad grasp of CRM automation and appointment setting will ensure an effective integration process taking note of all call regulations and privacy compliances. Furthermore, our UI/UX & Digital Experience expertise will come to play as we commit to not just developing a killer system but also ensuring you are equipped with the necessary skills to use, modify and manage it effectively through comprehensive step-by-step training. By entrusting us with this project, you get more than just developers; you get long-term technology partners who don't just deliver but educate. Let’s start building something remarkable together! Estimated cost: $20,000 Projected time required: 8 weeks
$20 USD in 40 days
4.0
4.0

Hi there, I will build a compliant AI outbound calling agent using ElevenLabs voice synthesis (or a recommended alternative) with Twilio for telephony and GoHighLevel (GHL) for CRM integration, this matches your stack and appointment-setting needs. - Deliverable 1: Twilio Programmable Voice + ElevenLabs (or Synthflow) integration to place calls, stream TTS/ASR, and log call events. - Deliverable 2: CRM & calendar integration (GoHighLevel + Google Calendar/Calendly) with call outcome mapping (Interested, Booked, No Answer, Wrong Number). - staged deployment and post-fix validation with rollback plan. Skills: ✅ ElevenLabs ✅ Twilio Programmable Voice ✅ GoHighLevel CRM integration ✅ ASR/intent routing & webhook automation ✅ Calendar booking (Google Calendar/Calendly) Certificates: ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I’m available to start; Do you want outbound calls routed via Twilio Programmable Voice (SIP fallback) or a dedicated SIP trunk for higher scale? Best regards,
$35 USD in 20 days
3.4
3.4

Hi there, I’ve read your AI Voice Calling System project and I’m confident I can deliver a natural-sounding, compliant outbound dialer that can schedule appointments and track outcomes in a professional way. With hands-on experience in AI voice agents, ElevenLabs, Twilio, and CRM integrations like GoHighLevel, I’ve built similar systems that talk to prospects, understand basic responses, and push booked or rescheduled meetings into calendars. I will recommend a platform strategy that balances natural voice quality with robust call regulation compliance, and I’ll show you how to connect the AI voice system to your CRM and calendar. The setup, testing, and training will be delivered with clear step-by-step guides and live online training so your team can manage and modify the flows, and we can start with a quick discovery and provide a realistic timeline. Best regards,
$15 USD in 26 days
3.5
3.5

Hey there, I'm Vishal Maharaj, an AI development expert with 25 years of experience in Perth, Australia. I am passionate about taking on your project involving AI Voice Calling System Development. I understand the need for a natural-sounding AI phone calling system that can interact with potential clients effectively. I would approach the project by recommending the best AI platform, integrating it with your CRM and calendar, and providing thorough training on system usage. Let's discuss further details and kickstart this exciting project. Cheers, Vishal Maharaj
$20 USD in 40 days
3.3
3.3

Hello! Based on your project description, you are looking to build a natural sounding AI voice calling system that can automate outbound appointment setting calls, handle basic customer conversations, classify call outcomes, and integrate with CRM and calendar systems. The platform will function as an AI voice agent capable of making human like phone calls, understanding responses, booking meetings, and updating workflows automatically while remaining compliant with applicable calling and privacy regulations. I would recommend using a combination of ElevenLabs for ultra realistic voice synthesis together with Vapi AI or Retell AI for conversational call orchestration and Twilio for telephony infrastructure. ElevenLabs alone is excellent for voice quality but it is not a complete outbound conversational calling platform by itself. For CRM and appointment automation, I would integrate the system with GoHighLevel using API workflows and connect calendars through Google Calendar or Calendly integrations. I specialize in AI automation systems, conversational voice agents, and CRM workflow integrations with 7+ years experience and I have done similar work in past please open the chat window so I can share with you including AI calling and automation related projects. Thank you for considering my proposal. I look forward to hearing from you soon. Best regards, Nikita Gupta.
$15 USD in 40 days
3.2
3.2

Hi, I’ve built AI voice appointment flows before, and for outbound calling I would usually use a calling platform like Vapi, Retell, or Bland with ElevenLabs for voice if needed, rather than ElevenLabs alone. Are your leads already stored inside GoHighLevel, or will they come from another source? I’d start by defining the call script, consent rules, call outcomes, and appointment logic, then connect the voice agent with Twilio or a managed calling platform. From there I’d sync results back to GHL, update lead status, book calendar slots, and create a simple dashboard or workflow so your team can review calls and manage callbacks. I’d also include test calls, prompt tuning, fallback handling, and a live training session so you can edit scripts and monitor results without depending on me for every small change. Kind regards, Abel
$20 USD in 40 days
2.9
2.9

Hello, The primary engineering challenges include ensuring a fluid conversational flow while managing state across various call outcomes. Another critical aspect is integrating seamlessly with the existing CRM and calendar systems, which may involve complex data synchronization and validation processes. To clarify further, will the AI agent need to adapt its responses based on previous interactions or customer history? Additionally, what specific compliance measures and consent protocols must be adhered to in your target markets? I am ready to discuss the architecture and your specific needs in detail.
$15 USD in 40 days
2.7
2.7

Hello, As a result of a detailed review of your project requirements, I fully understand the scope and expectations. I have experience building AI voice agents, CRM automations, appointment workflows, and API-based calling systems, and I’m available to start immediately. I bring strong expertise in ElevenLabs, Twilio, GoHighLevel, Vapi/Retell-style voice agents, AI chatbot development, Make/Zapier automation, appointment setting flows, CRM integration, and call outcome tracking with over 10 years of experience. For this use case, I would recommend using ElevenLabs for voice quality together with a dedicated AI calling platform such as Vapi, Retell, or Bland AI, then connecting it to GHL, Twilio, and your calendar for bookings, call results, follow-ups, and lead status updates. I can build the outbound call flow, configure conversation logic, capture outcomes like interested/not interested/call back/booked/no answer, integrate CRM/calendar automation, test the system, and provide step-by-step online training so your team can manage it safely. I have a couple of quick questions. • Are your leads already stored inside GoHighLevel, or should the system import them from another source? • Which country/region will the calls target so we can align the setup with consent and call compliance rules? I would be glad to discuss setup timeline, cost, and platform choice further. Best regards, Carlos
$15 USD in 40 days
2.7
2.7

Hey, I’m building AI automation around appointment setting myself, so the voice-agent piece is familiar. I felt that handoff problem building Daubix. It sounds like the real work is getting the caller, CRM, calendar, and call outcome to move together without the team having to clean it up after. My work sits between sales calls and AI builds. Held the #1 appointment setter seat while running 1,000+ leads through the pipeline. I built a human-feel AI agent that lifted response rate by 47% and saved 25 hours a week. Building an AI calling system makes sense. My only concern is the agent sounds natural but fails at consent, CRM updates, and the booking handoff. By your own words, you need setup, testing, and training on how to manage it. What you actually need is someone who understands appointment setting and can build the voice flow around the whole call outcome. If you're open to it, let's have a quiick conversation. No strings, just want to point you in the right direction. You wouldn't be opposed to that, would you? Cheers, Sam
$72 USD in 40 days
2.5
2.5

Dear Sir, I am thrilled to bid your project. I can help build a compliant AI voice appointment-calling system that speaks naturally, handles simple conversations, records call outcomes, and connects with your CRM or calendar. For this use case, I would recommend Vapi, Retell AI, Bland AI, or Synthflow with ElevenLabs voice, because ElevenLabs is excellent for voice quality but not enough by itself for full outbound calling, call logic, CRM updates, and outcome tracking. I can connect the system with Twilio or Aircall for calling, GoHighLevel for CRM, and Calendly or GHL calendar for appointment booking. The workflow can detect outcomes such as interested, not interested, call back later, appointment booked, no answer, and wrong number, then update the CRM automatically. My crucial question is: will the AI call only opted-in leads, or do you need help setting up consent and compliance rules before calling? This matters because outbound calling must follow privacy, consent, and call regulation requirements. I can build, test, document, and train your team step by step so you can edit scripts, monitor calls, update workflows, and manage the system confidently. Sincerely, Sihalath.
$20 USD in 40 days
2.3
2.3

Hello, I can help you efficiently develop your AI voice calling system. Approach: • Simple and straightforward process • Ensuring all components are properly integrated Technologies: • ElevenLabs, Twilio, GoHighLevel, Zapier, AI voice agents Extras: • Proper setup and testing to ensure everything functions correctly • Step-by-step training on how to use the system Timeline: • 5–7 days Goal: To deliver a fully functional AI voice agent for appointment scheduling—hassle-free. Ready to get started. Agustin
$20 USD in 40 days
2.0
2.0

With over a decade of experience in full-stack development and an expert in AI automation, I am confident that I can meet and exceed your project expectations for the development of an AI voice calling system. I have worked extensively with AI platforms like ElevenLabs and your mentioned preferred platforms such as Twilio and Bland AI, which not only gives me a comprehensive understanding of their capabilities but also the ability to tailor solutions that maximize their potential for specific projects. I understand the complexity and ethics involved in developing AI systems, especially when it comes to automated outbound calls. Ensuring compliance with call regulations, privacy rules, and consent requirements is paramount. My experiences with building similar solutions give me the skills needed to strike that balance between efficiency and ethical responsibility. In addition to system development, I bring a strong commitment to knowledge transfer and clarity. A project of this nature demands more than just technical setup - it requires thorough training on how to use, modify, and manage the system effectively. Drawing from my track record of delivering not just basic solutions but production-ready systems geared toward real business impact, I vow to provide comprehensive training alongside successful implementation. I'm excited about the opportunity to develop this game-changing AI voice calling system for you, and I look forward to discussing further details with you soon.
$20 USD in 40 days
2.0
2.0

Distrito Federal, Brazil
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