Hire the Best VOIP Software Engineers
in India
Thane, India
✅ Top Rated Plus AI Agent Development ✅ 100% Job Success Score ✅ Fluent English Verified AI Voice Agents | Twilio Expert | SMS, Calling & CRM Automation I help businesses automate customer communication using AI Voice Agents, SMS Automation, Calling Systems, CRM Integrations, and Communication Workflows. With 130+ completed projects, Top Rated Plus status, and a 100% Job Success Score, I specialize in building production-ready systems that answer calls, qualify leads, book appointments, automate follow-ups, improve customer response times, and reduce manual work. My expertise combines modern AI technologies with real-world communication infrastructure, helping businesses move from manual processes to scalable automation. 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 📞 Voice AI & Communication Automation AI Voice Agents, AI Receptionists, AI Calling Systems, Appointment Booking Agents, Lead Qualification Systems, Customer Support Automation, Contact Centers, IVR Systems, SIP, SMS Automation, Call Routing 🤖 AI Solutions & Conversational Systems OpenAI, Claude, Gemini, Vapi, Retell AI, Conversational AI, Knowledge Assistants, Internal AI Tools, Business Automation ⚙️ CRM & Workflow Automation Lead Management, Pipeline Automation, Customer Communication Workflows, CRM Integrations, Automated Follow-Up Systems 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 📞 AI Voice Agents & Calling Systems • AI Receptionists • AI SDRs • Appointment Booking Agents • Customer Support Agents • Outbound Calling Systems • Inbound Voice Automation • Voice AI Integrations 📡 Twilio & Communication Solutions • Twilio Development • SMS Platforms • IVR Systems • Call Center Solutions • Twilio Flex • Voice & Messaging Automation • Toll-Free & A2P 10DLC Solutions ⚙️ CRM & Business Automation • HubSpot Integrations • GoHighLevel Automation • Salesforce Integrations • Custom CRM Development • Lead Qualification Workflows • Business Process Automation 🧠 OpenAI, Claude & AI Integrations • ChatGPT Solutions • Claude Integrations • AI Assistants • Knowledge Systems • Internal AI Tools • RAG Applications 📱 SaaS, Web & Mobile Applications • Customer Portals • Admin Dashboards • AI-Powered Platforms • Web Applications • Mobile Applications 🖥️ Backend Development Python, Node.js, FastAPI, Express.js, REST APIs, Webhooks, Microservices 💻 Frontend Development React, Next.js, Vue.js, Angular 📱 Mobile Development React Native, Flutter, Swift, Kotlin ☁️ Cloud & Infrastructure AWS, Azure, GCP, Docker, CI/CD, Serverless Architectures 📊 Databases & AI Infrastructure PostgreSQL, MongoDB, Firebase, Supabase, Vector Databases 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 • Real Estate & Property Management • Healthcare & Wellness • LegalTech • Financial Services • Logistics & Transportation • Professional Services • Call Centers • Home Services • SaaS & Technology Companies If you're looking to automate calls, SMS, customer communication, lead qualification, appointment booking, or customer support using AI and Twilio-based communication systems, let's discuss your project. Keywords: AI Voice Agent, AI Receptionist, AI Calling Agent, Twilio Developer, SMS Automation, IVR Development, CRM Automation, Voice AI, OpenAI, Claude, Vapi, Retell AI, Contact Center Solutions, Call Center Automation, Lead Qualification, Appointment Booking, Customer Communication Automation, Workflow Automation, Conversational AI, SaaS Development, Python, Node.js, React
- VoIP Software
- VoIP
- Twilio
- Twilio API
- SMS
- SMS Gateway
- WhatsApp
- SMS Module Optimization
- API Development
- Telephone System
- IVR Software
- Call Center Software
- Automated Call Distribution
- Chat & Messaging Software
- Chatbot Development
- AI Chatbot
- AI Bot
- CRM Automation
- Automation
- Compliance
Faridabad, India
15+ Years VoIP Experience | 3CX Certified | Grandstream Certified I help businesses build, fix, and optimize VoIP systems—from 3CX and Twilio integrations to full-scale call center deployments. I am a VoIP and unified communications specialist with 15+ years of experience designing, deploying, and securing business communication systems. To ensure fast and reliable delivery, I work with a small, experienced team, including a senior VoIP engineer who handles advanced implementations and complex troubleshooting. This allows me to provide both strong technical execution and smooth client communication. Whether you need to deploy a new PBX, fix a SIP issue, integrate CRM, or build a call center, I deliver end-to-end solutions that are secure, scalable, and production-ready. VoIP & PBX Systems • 3CX setup, migration, and troubleshooting (V18 / V20) • Grandstream UCM6300 / UCM6510 deployment • Asterisk / FreePBX configuration • SIP trunk setup (Twilio, Telnyx, SignalWire, etc.) • IP phone provisioning (Yealink, Grandstream, Fanvil) Twilio & Cloud Communication • Twilio Voice & SMS integration • SIP trunking with PBX systems • IVR and call automation • AI voice bots (Dialogflow CX) • AWS Connect solutions Call Center Solutions • Queue setup and agent routing • IVR and call flow design • Call recording and reporting • High-volume outbound calling systems CRM & API Integration • 3CX integration with Zoho, HubSpot, Kommo • Call popups and call logging • Custom API integrations (PHP / Webhooks) VoIP Security & Troubleshooting • SIP security (TLS / SRTP) • SBC configuration • Fraud prevention and toll fraud protection • NAT / firewall troubleshooting • One-way audio, registration, and routing fixes Proven Experience I have successfully delivered solutions such as: • 3CX + Twilio SIP trunk integration with automation • Kamailio + Asterisk architecture for high-volume calls • Grandstream UCM6300 PBX deployments • 3CX CRM integrations with call tracking • Migration from Gorgias to Re:amaze with VoIP integration Certifications ✔ 3CX Advanced Certified Engineer ✔ Grandstream Certified Specialist Why Clients Choose Me ✔ 15+ years of real VoIP experience ✔ Certified in 3CX and Grandstream ✔ Small team support for faster delivery ✔ Strong troubleshooting and problem-solving skills ✔ Secure, scalable, and reliable solutions ✔ Clear communication and professional approach How I Work Understand your requirement or issue Identify the best solution or root cause Implement a reliable and clean setup Test thoroughly Provide support if needed Available for: • 3CX / PBX setup and troubleshooting • Twilio and SIP integrations • Call center deployments • VoIP consulting and architecture • CRM integrations 👉 If you're facing a VoIP issue or planning a new system, feel free to message me—I’ll be happy to help.
- VoIP Software
- VoIP Administration
- 3CX
- Twilio
- Grandstream
- Dialogflow
- Bitrix24
- FreePBX
- Kamailio
- OpenSIPS
- VoIP PBX
- Call Center Software
- Twilio API
- GoDaddy
- amoCRM
Ahmedabad, India
I put resources into innovation to enable our clients to release new potential over their associations. Incepted in 2009, from there to now in these considerable years, we've gone through every obstacle and provided solution with sheer dedication. What makes Moon Technolabs stand out from the crowd is their pool of experts, industry knowledge and a genuine understanding of what to do so as to succeed. - Web Development | Android/iOS Development | AI/ML Development | Windows/MacOS app - Computer Vision | VoIP/WebRTC | AI agent chatbot/Voicebot | IoT | MCP | CLI Pillars I work with: - Commitment - Quality with the standard code structure - best customer service after development - Agile Methodology
- VoIP
- Android
- WebRTC
- JavaScript
- iOS
- Python
- macOS
- Artificial Intelligence
- Smart Contract
- Internet of Things
- Machine Learning
Jaipur, India
I am a full-stack developer with over 6 years of experience in making custom mobile and web applications. I use leading technologies like Flutter, Firebase, React, and NodeJS to build easy-to-use, flexible solutions that help businesses grow. My skills allow me to turn your ideas into successful applications. My Technical Skills: - Mobile development ➤ Flutter, FlutterFlow, React Native, iOS, Android, CodeIgniter - Frontend Technologies ➤ HTML, CSS, JavaScript, TypeScript, jQuery, Bootstrap, ReactJS, Vue.js, Angular, Svelte, Blazor - Backend Frameworks ➤ NodeJS (Express), .NET, Django, Flask, NestJS, Spring Boot, Laravel - Databases ➤ PostgreSQL, MSSQL, MySQL, Firebase Database, MongoDB, Redis, SQLite - DevOps ➤ Azure DevOps, Apache, DigitalOcean, Amazon AWS, Google Cloud Platform, Heroku, Docker, Kubernetes - Payment Integrations ➤ Paypal, Stripe, Razorpay, Apple Pay, Paytm, Square, Braintree, and many others - APIs & Libraries ➤ REST APIs, GraphQL, Social Logins (Facebook, Instagram, Google, etc.), Twilio (SMS, VoIP), Google Analytics, Firebase APIs, Google Maps API, In-App Billing, Audio/Video Streaming, Mailchimp, and more - Testing Frameworks ➤ Jest, Mocha, Selenium, Cypress - QA Tester ➤ Manual Testing, Automated Testing, Performance Testing, Security Testing, Usability Testing - Design Tools ➤ Figma, Adobe XD, Sketch, Photoshop, Illustrator - Project Management Tools ➤ Slack, Trello, Jira, Asana, Monday.com, Github, BitBucket, GitLab, Azure DevOps Successful Projects I’ve Completed: - Job/News Posting App: Made a platform for job and news postings. - AI Image Generation Tool: Made a tool using artificial intelligence. - E-commerce App with Admin Dashboard: Built an app with admin features. - WooCommerce to Native App Conversion: Changed WooCommerce websites into mobile apps. - Salon Shop App: Made an app for booking and managing clients for salons. - POS System: Set up a system to make transactions accurate and improve reporting for businesses. Why Choose Me? - Client-Focused: I take time to understand your ideas and make solutions for your business needs. - Passion and Dedication: I am committed to making great user experiences and I care about every project I do. - Responsive Design: I make sure your application works well on all devices and platforms. - Expertise: With my many skills, I bring a lot of technical knowledge to your project. - Scalability: Whether you’re a startup or a large company, I change my services to fit your project size. - Quality Assurance: I follow strict steps to ensure high-quality and reliable applications. - Agile Methodology: I use agile methods for good project management and on-time delivery. - Ongoing Support: I give support after launch to make sure your app keeps working well. Let’s Work Together! Ready to make your app idea happen? Let’s talk about how I can help turn your idea into a successful application.
- In-App Purchases
- Firebase
- iOS
- Firebase Cloud Firestore
- Android
- iOS Development
- Flutter
- Dart
- Laravel
- Responsive Design
- Mobile App
Ahmedabad, India
I am consistent "Top Rated Plus" VoIP Developer on Upwork with numerous 5 star reviews including excessively positive feedback. 14+ years of experience in Custom VoIP Software Development. I have provided a wide range of IT solutions, including VoIP Development, Websites & Mobile Apps development for international businesses and start-up companies as well as for large enterprises. 🏆 Following are my area of experiences: ✓ VoIP / SIP / RTP ✓ OpenSIPs / Kamailio / OpenSER ✓ FreeSWITCH, FusionPBX, ASTPP, Lua Scripts ✓ Asterisk, FreePBX, A2billing ✓ RTPengine / MediaProxy / RTPproxy ✓ Twilio ✓ Linux & OpenSource Consulting ✓ MariaDB, MySQL, PostgreSQL (Database design & complex SQL query expert) ✓ PHP, Yii/Yii2, Apache, Nginx ✓ Android 🏆 I provide the following solutions: ✓ High scalable Least Cost Routing(LCR) with Fail-Over ✓ Session Border Controller(SBC) ✓ Click to call ✓ Class4 & Class5 Soft Switches ✓ SIP Proxy Server, SIP Load Balance & Fail-Over ✓ SIP Messaging Server, SIP Redirect Server ✓ IVR Application ✓ Fax over IP (FoIP), T38 Supported FAX Server, FAX to Email ✓ Shoutcast Server ✓ WebRTC SIP client ✓ PHP RESTfull API, Web Services for Mobile Application ✓ Web Applications ✓ Mobile Applications. My core competency lies in complete end-to-end IT solutions for VoIP, Web, and Mobile technologies. 👤 Reviews & feedback given by clients for successfully completion of largest projects ⭐⭐⭐⭐⭐ "Malay is an excellent VoIP expert and was able to do any task we could throw at him. Will be using his services again shortly as our go-to VoIP expert." ⭐⭐⭐⭐⭐ "Excellent at meeting deadlines. Outstanding at changing work hours to conform to my requirements. First-rate productivity levels. Extremely good communication and ability to explain and brainstorm in a group environment. Admirable at working with other random developers I brought into the project throughout the years. Malay and his team at Prayantech were able to tackle any task I through at them from Asterisks, FreeSwitch, Python PHP HTML JS Debian RHEL IP Tables working inside of multiple different cloud hosting environments his understanding of VPN and firewall security are excellent. I can’t say enough good things about this group I am certain we will be working together as a team for many years to come." ⭐⭐⭐⭐⭐ "Malay and his team were great to work with. Once we got in a flow, we were able to bring something to life I could not have done without him and his team. He was extremely aware of timelines and making time for our project during our "open hours" and working around the time change. Thank you Malay! Keep up the great work and I look forward to working with you soon!" ⭐⭐⭐⭐⭐ "It was a pleasure working with Malay. Very professional and to the point. they don't waste time and they want to finish your project as much as you want to."
- VoIP Software
- VoIP Administration
- VoIP
- Database Administration
- Linux System Administration
- Session Initiation Protocol
- MariaDB
- Asterisk
- API
- Yii2
- Kamailio
- PHP
- Yii
- FreeSWITCH
- OpenSIPS
- MySQL
Noida, India
🌟 Elevate Your iOS, iPhone, iPad, and macOS Development Projects with a Proven Expert! 🌟 🔹 Over a Decade of Mastery in Crafting Digital Excellence for Apple Platforms ✅ 50+ Successful Mobile Apps Delivered for iOS, iPhone, iPad, and macOS ✅ 1600+ Hours of Top-Tier Development Across 47+ Projects ✅ POS Expert – Built a custom Point-of-Sale (POS) system for a Canada-based pizza chain, deployed in 125+ stores 🔹 Why Choose Me? ✨ End-to-End Development – From concept to App Store deployment ✨ Agile/SCRUM Pro – Reliable, iterative, and transparent workflows ✨ Deep Platform Expertise – iOS, iPhone, iPad, macOS, Swift, Objective-C, SwiftUI ✨ Industry-Specific Solutions – FinTech, Healthcare, E-commerce, Social Media, POS, and more 🚀 My Specializations: 📱 App Development Expertise ✔ Social/Dating Apps – Video/audio chat, real-time messaging (WebRTC, Twilio) ✔ E-Commerce & Marketplaces – Payment gateways (Apple Pay, Braintree), cart systems ✔ On-Demand Apps – Ride-hailing, food delivery, home services ✔ Health & Telemedicine – HIPAA-compliant data, appointment booking ✔ Live & Video Streaming – Low-latency streaming (Agora, ZegoCloud) ✔ FinTech & Banking – Secure transactions, KYC integration ✔ Augmented Reality (ARKit) – Interactive AR experiences ✔ POS Systems – Custom-built for retail, restaurants, and multi-location businesses 💡 Technical Skills & Tools Languages: Swift, Objective-C, SwiftUI Architecture: MVVM, MVP, MVC, Clean Architecture Backend Integration: Firebase, REST, GraphQL, WebSockets (Socket.IO) AI & Chat: OpenAI API, ChatGPT, CometChat SDK Payments: Apple Pay, Stripe, Braintree, Moneris, In-App Purchases Testing: XCTest, UI Automation, CI/CD (Fastlane, Jenkins) Security: Biometrics, OAuth2, End-to-End Encryption 🔧 Advanced Integrations Real-Time Features: WebRTC, Live Streaming, VOIP (Linphone, Sinch) Maps & Location: Google Maps, Mapbox, Geofencing, Beacons Analytics & Crash Reporting: Firebase, Crashlytics, New Relic Push Notifications: Firebase Cloud Messaging, OneSignal Database: CoreData, Realm, SQLite 🎯 Industries I’ve Worked In: Retail & POS – Custom checkout systems, inventory management Food & Beverage – Delivery apps, POS for restaurants Healthcare – Telemedicine, fitness tracking Finance – Mobile banking, investment apps Travel – Airline & hotel booking platforms Social Media – Dating apps, audio/video communities 💼 Notable Projects: ✔ POS System for 125+ Stores – Custom-built for a Canadian pizza chain ✔ Live Video Social App – 1M+ downloads, WebRTC integration ✔ Banking App – Secure transactions, biometric login ✔ AI-Powered Wellness App – ChatGPT integration for personalized coaching 📩 Let’s Build Something Remarkable! I’m fluent in English and passionate about turning your vision into a high-performance Apple app. Whether you need a startup MVP or a large-scale POS solution, I’ve got you covered. 👉 Get in touch today—let’s discuss your project!
- VoIP
- iOS Development
- iOS
- Mobile App Development
- macOS
- Mac OS App Development
- Map Integration
- Push Notifications
- Google Maps API
- Native App Development
- Chat & Messaging Software
- Swift
- Objective-C
- Firebase
- Socket.io
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