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I need a small voice-first agent built with Claude (via the Claude API and any supporting code you prefer) that will: • Answer an incoming call. • Record the caller’s message in their own voice—no transcription necessary. • Guide the caller, through interactive voice prompts, to pick a convenient date and time for a return call. • Immediately email that voice recording and the chosen callback slot through my Outlook account to the right team member. Please wire the scheduling logic so it can read and write to a calendaring source (Microsoft 365 calendar or a lightweight database—whichever keeps the build simple while avoiding double-booking). The Outlook mail send must use Microsoft’s modern OAuth flow, not basic auth. I’m open to Twilio, Amazon Connect, or a similar telephony SDK as long as the final solution is self-hostable and the hand-off between the voice layer and Claude remains clean. Deliver a Git repo with clear setup instructions and a quick demo script so I can place a test call, hear the prompts, leave a message, and watch the confirmation email arrive with the .wav attachment and calendar invite. Successful delivery is a fully working flow plus concise deployment notes so I can spin it up on my own Azure VM.
Project ID: 40567845
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61 freelancers are bidding on average $35 AUD/hour for this job

Hello, I will build your voice agent using Claude API with Twilio for telephony: answer the call, play interactive prompts, capture the .wav recording, let the caller pick a callback slot, then fire the recording plus calendar invite to the correct team member via Outlook OAuth2. On a similar Twilio/Claude integration, keeping the voice layer stateless made the handoff clean and debugging simple. I will structure yours the same way. Questions: 1) How many team members need routing, and what determines "the right" one? 2) Do you already have an Azure AD app registration for the OAuth flow? Share your Microsoft 365 tenant details and I will scaffold the repo today. Looking forward to your response. Best regards, Kamran
$34 AUD in 40 days
6.1
6.1

⭐⭐⭐⭐⭐ Create a Voice-First Agent with Claude for Seamless Call Handling ❇️ Hi My Friend, hope you are doing well. I've reviewed your project needs and see you're looking for a voice-first agent. You don’t need to look any further; Zohaib is here to help you! My team has completed 50+ similar projects involving voice agents. I will build a solution that answers calls, records messages, and schedules callbacks efficiently. I will utilize the Claude API along with Twilio or Amazon Connect to ensure a smooth interaction. The agent will guide callers through prompts to select a date and time for callbacks. ➡️ Why Me? I can easily create your voice-first agent as I have 5 years of experience in building voice applications, specializing in telephony solutions, API integration, and interactive voice response systems. Not only this, but I also have a strong grip on Microsoft Azure and database management, ensuring a reliable and efficient setup. ➡️ Let’s have a quick chat to discuss your project in detail and I can show you samples of my previous work. Looking forward to it! ➡️ Skills & Experience: ✅ Voice Application Development ✅ Claude API Integration ✅ Twilio/Amazon Connect ✅ Interactive Voice Response ✅ Microsoft 365 Integration ✅ OAuth Authentication ✅ Call Handling Logic ✅ Database Management ✅ Email Automation ✅ Scheduling Systems ✅ Git Repository Management ✅ Azure Deployment Waiting for your response! Best Regards, Zohaib
$30 AUD in 40 days
5.4
5.4

AI Voice Agent Expert is ready to achieve your goals with a secure, Claude-powered voice automation solution. I can build a self-hosted Claude API voice agent integrated with Twilio/Amazon Connect, Microsoft 365 Calendar, and Outlook OAuth to answer calls, capture voice messages, schedule callbacks, prevent double-bookings, and automatically email recordings with calendar invites. Please ping me to get started. Thanks!!!
$38 AUD in 40 days
3.9
3.9

Dear , We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time. We are 25 years in this business and our technical specialists have strong experience in Cloud Computing, Azure, OAuth, Twilio, Voice Assistance Devices, Database Management, API Development, Microsoft 365 and other technologies relevant to your project. Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews. Please contact us via Freelancer Chat to discuss your project in details. Best regards, Sales department Tangram Canada Inc.
$35 AUD in 5 days
3.6
3.6

This looks like a great fit, We will build your voice agent using Claude API with Twilio for telephony: call answering, voice recording, interactive scheduling prompts, and Outlook email delivery with OAuth 2.0. For scheduling, we will use Microsoft 365 calendar via Graph API. This handles double-booking prevention natively and keeps the stack simple. A couple of quick things to confirm: 1) How many team members will receive forwarded calls? 2) Do you have a Twilio account already, or should we set one up? The number quoted here is a starting estimate. The exact cost and timeline will be confirmed after we go through the full scope together. Ready to start whenever you are. Faizan
$34 AUD in 40 days
3.8
3.8

Hello. I can build your voice-first agent using Node.js, Twilio Media Streams, and the Claude API, configuring Microsoft Graph API via OAuth2 to handle modern Outlook email delivery and Microsoft 365 calendar booking without double-booking. Let’s chat and get started. George
$30 AUD in 40 days
3.0
3.0

The clean part of this is talking to Claude; the part that actually decides whether it ships is the telephony-to-Claude handoff and the Outlook OAuth, so that's where I'd focus. I build voice and messaging integrations on exactly this stack. Call flow: Twilio Programmable Voice answers the call, a Record verb captures the caller's own voice to a .wav (no transcription, as you said), and Gather runs the interactive prompts. Claude comes in through the Claude API to turn what the caller says into a clean callback slot, the date and time parsed into a real datetime rather than loose text, and I'd keep that layer thin so the voice and scheduling stay decoupled the way you asked. Scheduling reads and writes through Microsoft Graph, checking free/busy before it books so nothing double-books, either against the Microsoft 365 calendar or a small SQLite store if you'd rather keep it simple. The Outlook email goes out through Graph on the OAuth 2.0 auth-code flow, modern auth, no basic auth anywhere, with the .wav and the calendar invite attached. The whole thing runs as a small self-hostable service (FastAPI plus a Twilio webhook endpoint) that drops onto your own Azure VM. You get a Git repo with setup steps and a demo script, so you can place a test call, hear the prompts, leave a message, and watch the confirmation email land with the .wav and the invite. I'd wire the Twilio and Graph pieces against your own accounts and test the full path end to end before calling it done.
$33 AUD in 14 days
2.7
2.7

Build a self-hostable, voice-first Phone Message Automation Agent that answers inbound calls, captures the caller’s spoken message as a .wav (no transcription), and then guides the caller through interactive prompts to select a callback date/time. Integrate scheduling logic with Microsoft 365 calendar (or a lightweight DB) to prevent double-booking, and immediately email the recording plus the chosen slot to the correct team member via Outlook using Microsoft’s modern OAuth flow (no basic auth). Use a clean hand-off between the telephony layer (Twilio or Amazon Connect) and the Claude API so the agent can manage conversation state and scheduling decisions reliably. Deliver a Git repo with clear setup steps for an Azure VM, plus a demo script to place a test call, complete the prompt flow, and verify the confirmation email arrives with attachment and calendar invite. Provide concise deployment notes covering required env vars, OAuth setup, callback routing, and how to run end-to-end.
$28 AUD in 25 days
0.0
0.0

Hi You’re seeking a self-hosted, voice-first agent that uses Claude to answer calls, records the caller voice (no transcription), guides scheduling via prompts, and emails the recording plus a calendar invite through Outlook with modern OAuth, all integrated with a telephony layer and Azure deployment. The result should be a reproducible Git repo with setup steps and a quick end-to-end demo script. I am an AI/web developer focused on scalable, user-centered automation and API workflows. I turn complex toolchains into repeatable, maintainable processes—delivering clear milestones, practical wiring between voice, AI, and calendar/email services, and concrete Azure VM deployment guidance. I’ll balance Claude integration, telephony SDKs (Twilio or similar), and a simple scheduling datastore to avoid double-booking. I propose four work phases: (1) architecture and data flow design (voice to Claude to scheduling to email), (2) VoIP hand-off, Claude prompts, and OAuth-scoped calendar/write access, (3) end-to-end testing with a test call and demo script, (4) deployment notes and a ready-to-run repo. The outcome is a self-contained flow plus quick setup steps to spin up on an Azure VM. I can provide lightweight reference materials and a concise deployment guide to reuse the workflow and keep branding consistent across automation, email, and calendar. Best, Justin
$60 AUD in 40 days
5.1
5.1

I am well-equipped to handle your Phone Message Automation Agent project with my expertise in telephony solutions and API integrations. I have extensive experience implementing voice-first systems using platforms like Twilio and Amazon Connect, ensuring seamless interaction between voice layers and advanced AI models like Claude. My understanding of OAuth for secure email integration aligns perfectly with your requirement for modern authentication methods. My background includes integrating scheduling systems with Microsoft 365 and lightweight databases to ensure efficient, double-booking-free calendaring. I can build self-hostable solutions and deliver a Git repository with comprehensive setup instructions, ensuring you can deploy effortlessly on your Azure VM. My approach prioritizes a clean hand-off and a robust, interactive experience for your customers, all within your specified guidelines. I am very interested in discussing how I can add value to your initiative. Can we schedule a call to go over your specific goals or review a successful build use case? Looking forward to your thoughts.
$25 AUD in 40 days
0.0
0.0

Hello. As an experienced freelance voice and conversational AI developer, I am excited to submit my proposal for your Phone Message Automation Agent project. I believe my background in building enterprise-grade voice solutions makes me an ideal partner to bring your vision to life. Key highlights of my qualifications include: • 5+ years of experience developing voice-first applications using Twilio, Amazon Connect, and other telephony SDKs. I have a proven track record of delivering robust, scalable, and user-friendly voice experiences. • Deep expertise in integrating conversational AI platforms like Claude with telephony systems. I understand how to architect a clean handoff between the voice layer and the AI assistant to deliver a seamless user experience. • Extensive knowledge of modern authentication flows like OAuth 2.0, which will be crucial for securely integrating with your Outlook account. • Strong background in database management and calendar integration, allowing me to implement the scheduling logic you described while avoiding double-booking. I'm confident in my ability to bring your Phone Message Automation Agent to life and look forward to the opportunity to discuss this project further. Please let me know if you have any other questions. Best regards,
$38 AUD in 40 days
0.0
0.0

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