Build Voice AI Agent for VoIP system

@OutsourceMan

As an AI-focused developer with a rich background in Android and Mobile App Development, I believe my skills will be a noteworthy asset towards constructing and integrating a Voice AI agent to your custom VoIP system effectively. Having already worked on similar projects involving ASR/NLU engines like Dialogflow, Amazon Lex, and more, I'm well-versed with the tasks you're seeking assistance on. Additionally, my talent in process optimization, evident in my creation of user-friendly dashboards and APIs for efficient data management, is positioned to ensure that you can easily update your FAQs on the fly. My team at CnELIndia has consistently demonstrated success in meeting stringent project requirements like transferring requests seamlessly and providing accurate time-stamped transcripts among other criteria. Our dedication to customer satisfaction is what has earned us such high ratings and testimonials from over 743 clients. We understand innovation and diligently seek ways to push boundaries – aligning perfectly with your need for an AI agent with an open-end capability for scaling purposes. I am excited to apply our 18 years of industry expertise to your project and assure you that my approach will enable us to complete this task efficiently while staying within the given timeline.

@ngxperts

I have ai agents which can actually sound very human, These are one of the fastest and cheapest in the market, If you want i can get a demo ready for you in a couple of days, Kindly let me know if this all seems interesting. Regards

@TechizeBuilder

Hi, I came across your project "Build Voice AI Agent for VoIP system" and I'm confident I can help you with it. About Me: I'm a agency owner with over 8+ years of experience in Mobile App Development, Android. , and I understand exactly what’s needed to deliver high-quality results on time. Why Choose Me? - ✅ Expertise in required Technologies and 1 year post deployment free support - ✅ On-time delivery and excellent communication - ✅ 100% satisfaction guarantee Let’s discuss your project in more detail. I’m available to start immediately and would love to hear more about your goals. Looking forward to working with you! Best regards, Deepak

@mahig47

Hello! As per your project post, you’re looking to build a conversational Voice AI agent fully integrated into your custom VoIP system, capable of answering common FAQs, transferring calls to live extensions when needed, and generating accurate, time-stamped transcripts. The goal is to create a seamless, intelligent, and compliant voice interface that improves caller experience while ensuring full logging and record-keeping. My focus will be on delivering a robust Voice AI integration, featuring: natural language understanding to respond to FAQs with a friendly tone, dynamic call routing to appropriate extensions, automated call recording in WAV format, and generation of structured JSON transcripts. The system will include a simple dashboard or API for real-time FAQ updates and will integrate smoothly with your SIP credentials and existing call flows. I specialize in building voice AI solutions with VoIP integration, leveraging speech-to-text engines, NLP models, and compliant recording pipelines to ensure high accuracy, reliability, and ease of administration. My approach focuses on maintainability, security, and a fully scalable architecture that can grow with your system. Let’s connect to discuss call-flow integration, transcription handling, and the best strategy for real-time FAQ updates. Best regards, Nikita Gupta.

@NEHABHAT92

With a whopping 9+ years of hands-on experience in Mobile App development, including both Android and iOS, my team and I are extremely qualified to bring your VoIP system to life with our voice AI agent expertise. Our development company has a track record of turning ideas into reality - a skill we're confident will prove beneficial during this project. In regard to your specific project needs, we are familiar with ASR/NLU engines such as Dialogflow and can effectively integrate them into your VoIP stack. Our portfolio boasts successful connections between Voice AIs and diverse systems, guaranteeing seamless transfers and heightened customer satisfaction. Though we primarily focus on web and mobile application development, our cross-functional approach is what sets us apart. We’re more than capable of creating a logical bridge between your custom-built VoIP system and the Voice AI agent for a harmonious user experience. Furthermore, our dedication extends indefinitely – we offer 3 months' free support following project completion to ensure everything stays operable as expected. Don’t leave your VoIP system's full potential untapped; entrust us with the task to witness it flourish.

@CANWS

Hi, I’ve integrated conversational AI with custom VoIP stacks before and can build a Voice AI agent that fits your flow. • Integrate AI with your SIP-based VoIP to answer FAQs naturally • Smart routing to the correct extension when queries fall outside scope • Call recording + automatic transcripts stored as WAV + JSON in your S3 within 60s • Simple dashboard/API to update FAQs anytime ✅Suggested stack: Dialogflow or Amazon Lex with real-time ASR + webhook logic for transfers and logging. ✅Quick question: which VoIP platform or framework is your system built on (Asterisk, FreeSWITCH, or custom SIP server)?

@webmasters486

Hi there, I’ve reviewed your project and understand you need a conversational Voice AI agent integrated directly into your custom VoIP system that can answer common FAQs naturally, transfer callers to the correct extension when needed, and automatically record calls with accurate time stamped transcripts stored in WAV and JSON format. The goal is to ensure callers receive quick answers, seamless handoffs to live agents, and reliable call documentation for compliance. I can implement this using a robust speech stack combining ASR, NLU, and TTS with platforms such as Dialogflow, Amazon Lex, or an open source pipeline depending on your VoIP architecture. The AI layer will process incoming calls, detect intent from user queries, respond conversationally using your FAQ dataset, and trigger SIP based transfers to the correct extension when requests fall outside defined intents. Call recordings and transcripts will be generated automatically and pushed to your S3 bucket within seconds after call completion. I will also provide a simple dashboard or API endpoint so you can update FAQs without redeploying the system. The integration will be tested on your staging environment to ensure responses occur within two turns, transfers are latency free, and recordings plus transcripts are delivered reliably. Best regards, Muhammad Adil Portfolio: https://www.freelancer.com/u/webmasters486

@DigitalNightOwl8

Hello there , Good morning! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Natural Language Processing, Asterisk PBX, Conversational AI, VoIP, AI Development, Automatic Speech Recognition, AI Chatbot Development, AI Agents, Android and Mobile App Development. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Thank you

@MuhammadAsad108

✔ I deliver 100% work — 99.9% is not for me. ✔ Workflow Diagram VoIP System Access & SIP Configuration ⟶⟶ ASR & NLU Engine Integration ⟶⟶ Conversational AI Logic Setup ⟶⟶ Call Routing & Extension Transfer Setup ⟶⟶ Call Recording & Transcript Generation ⟶⟶ Storage Integration (S3 – WAV + JSON) ⟶⟶ Dashboard/API for FAQ Updates ⟶⟶ Live Testing & Optimization Key Highlights ✔ Conversational Voice AI Integration — intelligent voice agent connected directly to your custom VoIP infrastructure. ✔ Natural FAQ Conversations — AI answers common user questions in a friendly, human-like tone using advanced NLP. ✔ Smart Call Routing — automatic transfer to the correct extension when requests exceed the AI’s scope. ✔ Low-Latency Call Handling — optimized audio processing to ensure smooth real-time conversations. ✔ Automatic Call Recording — every call recorded and stored in the required WAV format. ✔ Real-Time Transcription — time-stamped transcripts generated using advanced ASR technology. ✔ S3 Storage Integration — recordings and transcripts automatically uploaded in WAV + JSON format. ✔ Editable Knowledge Base — simple dashboard or API to update FAQs dynamically without redeploying the system. ✔ VoIP Compatibility — seamless integration with SIP-based systems and Asterisk PBX environments. Best Regards, Fahad AI Voice Systems Developer | VoIP Integration Specialist | Conversational AI Engineer

@KarthikTechCon

Hello, I’m **Karthik**, a **Full-Stack & AI Solutions Architect with 15+ years of experience** building **voice automation systems, VoIP integrations, and AI-driven conversational platforms**. I can help implement a **Voice AI agent fully integrated with your custom VoIP system**. **Proposed approach:** • Integrate **ASR/NLU engine** (Amazon Lex, Dialogflow, or open-source stack with Whisper + LLM) for natural FAQ conversations. • Implement **call routing logic** so the AI answers common queries and seamlessly transfers calls to the correct extension when needed. • Enable **automatic call recording and transcription** with outputs stored as **WAV + JSON**. • Deliver a **simple dashboard/API** allowing you to update FAQs and responses dynamically. • Configure storage pipeline so **audio + transcripts are pushed to your S3 bucket within 60 seconds**. • Optimize call flows to ensure **fast responses (within two turns) and low-latency transfers**. **Tech stack:** SIP/VoIP integration, Node.js/Python backend, AWS services, ASR/NLU engines, and secure API architecture. I have experience integrating **AI chat/voice systems with telephony platforms and cloud services**, focusing on reliability and real-time performance. Happy to review your **SIP credentials, call flows, and example dialogs** and propose a quick implementation timeline. Best regards, **Karthik** 15+ Years | Voice AI | VoIP Integrations | AI Automation Systems ?

@robertw0802

Hi there, I’m Robert, a Senior Full-Stack & AI Engineer with over 10 years of experience architecting and delivering SaaS platforms, automation systems, and intelligent applications, specializing in AI integration, VoIP solutions, and real-time communication workflows. I have successfully developed and deployed a conversational Voice AI agent integrated into complex VoIP systems, enabling seamless user interactions and ensuring timely responses and accurate call handling. My deep technical background in AI, along with my experience in VoIP technology, aligns perfectly with your project's needs. I can complete this project perfectly and deliver scalable, production-ready results. I am committed to clean architecture, structured documentation, CI/CD automation, and OWASP-based security practices, ensuring your Voice AI agent is both reliable and secure. Let’s connect to refine your requirements and begin building a solution that exceeds expectations. What specific reporting features would you like included in the dashboard for managing FAQs?

@rajmalviyamalviy

API you will provide me? We have checked your requirement carefully that you need a Voice AI Agent for VoIP system. We have created ERPs, CRMs, Sales, Purchase management systems for small, medium, and large organizations. I am having an expertise of around 6+ years in this industry (asp.net, MVC, Core, CodeIgniter, and Laravel) and I am sure, by looking down at my portfolio, you must get an idea about my work and its approach. I will never disappoint you in terms of quality of work, deadline, and communication. Best regards. Raj M

@drtaimoor

Hello, I can help build and integrate a Voice AI agent into your custom VoIP system with support for FAQ handling, live extension transfers, and automatic call recording/transcription. I have experience working with AI-powered voice workflows, speech recognition, NLU pipelines, and telephony/VoIP integrations, and can design a solution that answers common queries in a natural tone while escalating out-of-scope calls smoothly to the correct extension. My proposed toolchain would typically include a VoIP/SIP integration layer, ASR + NLU engine (Dialogflow, Amazon Lex, or open-source alternatives depending on your preference), transcription pipeline, and storage integration to push WAV + JSON outputs to S3 within your compliance requirements. I can also provide a simple dashboard or API so you can update FAQs without changing core code. The implementation will focus on low-latency transfers, accurate transcripts, and a stable staging deployment, with a realistic timeline of 2–4 weeks depending on the existing VoIP stack and integration points.

@kaustubhbawa123

Hi, I am an IIT Grad, PMP Certified Professional, ex-BFSI and worked at fortune 500 companies. I will make it a reality for you. As a Voice Agent Developer, I will design, develop, and integrate a conversational Voice AI agent using Dialogflow, Rasa, or similar NLP platforms, wire it into the custom-built VoIP system, and expose a simple REST API or dashboard for updating FAQs on the fly, ensuring seamless recording and transcription of calls. Kindly click on the chat button so we can discuss and get started. Will share you my prior projects done and my resume too. I have been doing freelancing since 2019 worked at top MNCs in both USA and India. Lets connect

@arvinjay007

Hi there, I understand you're facing the challenge of adding a fully conversational Voice AI agent into your custom VoIP system while ensuring flawless FAQ handling, seamless transfers, and strict compliance with recording/transcription timing. I’ve spent the last 5 years solving exactly these kinds of VoIP-AI integration problems. I’ll connect your SIP layer to a performant ASR/NLU stack, build a real-time call router for sub‑two‑turn FAQ responses, wire low‑latency extension transfers directly into your VoIP core, and implement automated WAV+JSON call‑logging to your S3 bucket within 60 seconds. I’ll also create a lightweight dashboard/API so you can update FAQs instantly without redeployment. Thanks, Arvin Jay

@esthera4

For you to have posted this, it likely means the VoIP system itself already works… but turning it into something that can actually talk to people naturally, transfer calls smoothly, and still keep recordings and transcripts organized is where things start getting tricky. What you’re really after isn’t just a voice bot answering questions. You want a caller to ask something simple, get the right answer almost instantly, and when it goes beyond the AI’s scope, the call moves to the right extension without that awkward pause that makes people realize they were talking to a machine. Meanwhile every call quietly becomes a clean recording and transcript your team can review seconds later. The way I usually approach this is by weaving the AI directly into the call flow rather than bolting it on top. That keeps responses within those two turns, transfers feel immediate, and makes it easy for recordings and time-stamped transcripts to land in your S3 bucket exactly in the WAV and JSON format your compliance team expects. I’m curious though, what’s powering the VoIP stack underneath right now? I already have an idea that could make the AI feel like a natural part of the system rather than another layer on top… want me to show you what I mean?

@karthikresonite

Hello, Resonite Technologies would be glad to help you build and integrate a Voice AI Agent for your custom VoIP system. Our team has strong experience in VoIP integrations, conversational AI, and real-time voice processing, including projects using Dialogflow, Amazon Lex, Whisper-based ASR, and SIP-based telephony platforms. Based on your requirements, we can develop a natural conversational AI agent that answers FAQs in a friendly tone, intelligently routes callers to the correct live extension when needed, and ensures seamless call transfers with minimal latency. Our team will integrate the AI directly with your SIP-enabled VoIP stack, implement automatic call recording (WAV) and time-stamped transcript generation (JSON), and ensure all recordings and transcripts are securely pushed to your AWS S3 bucket within the required 60-second window. We will also build a simple dashboard/API to update FAQs dynamically, allowing you to manage responses without redeploying the system. Proposed Toolchain: • SIP / VoIP integration layer • ASR (Whisper / Amazon Transcribe) • NLU (Dialogflow / Rasa / Amazon Lex) • TTS for natural voice responses • AWS S3 storage + structured transcript pipeline Estimated timeline: 3–4 weeks including testing on your staging server. Our experienced engineers ensure fast, reliable deployment and production-ready voice automation. We’d be happy to discuss your call-flow diagrams and start immediately. Best regards, Resonite Technologies

@steffank2

Hello, I have completed similar projects outside of Freelancer. Recently, I helped a client integrate a conversational AI agent into their VoIP system, improving FAQ response times and seamless call transfers, which greatly enhanced their customer service efficiency. Your need for a clean, professional, and user-friendly Voice AI agent that’s fully integrated, automated, and records calls with accurate transcripts aligns perfectly with my expertise. I specialize in VoIP integrations and have extensive experience with ASR/NLU engines like Dialogflow and Amazon Lex. I am doing it at a discounted price because I want good reviews instead of a lot of money, I have tons of experience and have done other projects off site. I would love to chat more about your project! Regards, Steffan Koekemoer

@Shrutibimpl

Hello, I will build the conversational agent by connecting your VoIP system to a popular AI service using a standard telephony gateway. I will implement a custom logic layer to handle your FAQ dialogs and use a reliable intent detection model to determine when a call needs to be transferred via SIP. To manage the transcripts and recordings, I will set up an automated pipeline that processes the audio through a cloud-based speech-to-text engine and saves the resulting WAV and JSON files directly to your S3 bucket. I will also develop a simple dashboard to let you update the FAQ knowledge base in real time without modifying the core code. 1) Which specific ASR engine or AI platform do you prefer for this integration? 2) Is your VoIP system based on a particular framework like Asterisk or FreePBX? 3) What is the average expected volume of concurrent calls for the AI agent? Thanks, Bharat