Hire the Best FreePBX Specialists
in India

I am a VoIP and cloud technologies expert with over 12 years of experience specializing in Asterisk, FreePBX, Issabel, WebRTC, and cloud deployments. I have successfully implemented, customized, and optimized PBX systems and real-time communication solutions for businesses of all sizes. Whether it’s configuring a robust VoIP infrastructure, integrating WebRTC, or deploying PBX systems on the cloud, I deliver reliable and scalable solutions tailored to client needs. I am committed to providing high-quality work and timely results. I look forward to contributing to the success of your project. Best regards, Devendra Soni Asterisk | FreePBX | VoIP | WebRTC | Cloud Specialist

I am VoIP/VICIDIAL/VICIBOX/Asterisk/FreePBX/GoAutodial/vTiger/3CX developer and solution provider with past 16+ years of rich experience. I have expertise in them, and so i am confident to serve you for the same. I have rich telecom, web and custom software development and support experience. I'm interested in your job & I guarantee doing it in short time. I didn’t ask for an upfront as I'm interested in building long term relationships based on trust because I'm confident with my quality of work.

I help businesses build reliable, scalable communication systems and web applications by combining deep expertise in VoIP (3CX & Yeastar) with full-stack development and API integrations. With 6+ years of experience in 3CX, hands-on expertise in Yeastar Cloud PBX, and 3+ years in full-stack development, I specialize in delivering end-to-end solutions — from telephony infrastructure to CRM integrations and custom dashboards. 🔥 What I Can Do For You ☎️ VoIP & PBX Solutions (3CX + Yeastar) 3CX setup, configuration & troubleshooting (V18/V20) Yeastar Cloud PBX deployment & management SIP Trunk integration (Twilio, Telnyx, Flowroute, etc.) IVR, Call Queues, Ring Groups, Call Routing Predictive / Progressive Dialer setup Call recording, reporting & analytics Multi-tenant PBX architecture DID management & call flow optimization 💻 Full Stack Development Backend: PHP, Node.js, Golang Frontend: JavaScript, HTML, CSS, Bootstrap, Tailwind Database: MySQL, PostgreSQL Build scalable CRM systems & dashboards WebRTC / SIP dialer development Real-time systems & automation workflows 🔗 API Development & Integrations (Swagger/OpenAPI) REST API design & development Swagger/OpenAPI documentation CRM integrations (Zoho, Salesforce, Monday, etc.) Webhooks, automation, and data sync systems 🌐 WordPress Development Custom theme & plugin development Website optimization & speed improvements API integrations with WordPress Business websites & landing pages 💡 Why Clients Choose Me ✔ 6+ years in VoIP & telephony systems ✔ Strong backend + infrastructure understanding ✔ Fast troubleshooting & problem-solving ✔ Clean, scalable, production-ready solutions ✔ Excellent communication & long-term support 📌 Recent Work Highlights Built multi-company 3CX dialer system with CRM integration Deployed Yeastar Cloud PBX for international clients Developed VoIP analytics dashboards & call tracking systems Integrated Twilio / Telnyx with custom applications Created API-driven automation workflows using webhooks 🎯 Let’s Work Together If you need help with: Setting up or fixing your 3CX / Yeastar PBX Building a custom dialer or VoIP system Integrating APIs or CRM systems Developing a scalable web application 👉 Send me a message — I’ll provide a clear solution quickly.

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.

Hi Guest, First of all, thanks for visiting our profile. I am doing freelancing since 2010 and my expertise on complete VoIP solution including Freeswitch, Asterisk, PJSip, Opensips and Kamailio. I just recently launched a company which is not offering only VoIP solution but Zeus in Web Development(PHP, WordPress etc), Mobile App Development(Android & iOS). We are a team of members having extensive knowledge of all the services we are offering. We have successfully completed many projects delivered competent results with 100% accuracy with lifetime free support. To keep in mind 100% availability, Our dedicated manager is always online to make sure our client will face no more difficult to ask any query at any time. Let me mentioned the technologies which are our core strength listed below: - Development of Linphone Mobile VoIP Diallers - Development of PJSIP Mobile VoIP Diallers - Installation, development, customization, and maintenance of Asterisk,FreeSwitch Switch,Kamalio and OpenSIPs Servers - Android app development - iOS app development - Flutter Cross Platform App Development - Electron App Development - Web application development - ReactJS and ReactNative development for web and mobile applications - Testing and bug fixing for existing applications Consulting for ongoing projects Project consulting for Android, iOS, ReactJS, Asterisk, FreeSwitch, OpenSIPs, Kamailio, ASTPP, RTPengine, MediaProxy, RTPproxy, FreePBX, and A2Billing Expertise in developing Flutter WebRTC applications Expertise in developing ReactNative WebRTC applications Our price is very reasonable which allows us to work with us. Please share your requirement today only with us to check our capabilities to take your experience on the next level. To name a few tools & technologies that I have worked on: • High-level languages: C++, Objective C, Java, Python, PHP • IDEs: Xcode, Android Studio, Eclipse • Version Control & CI: SVN, Git, Perforce, Bitbucket, Jenkins • DBMS: MS SQL, MySQL, Oracle, PostgreSQL, MongoDB • Frameworks: Django, Zend, Magento, Django REST • Management tools: VersionOne, Jira, Trac, MS Project, MS Visio, XMind, Bugzilla, Balsamiq • Amazon Web Services (AWS) - EC2, S3, SQS, SNS, RDS, CloudTrail, Cloudfront

I design and build production-grade Contact Center, CCaaS, UCaaS, AI Voice Agents and VoIP systems for businesses and service providers who need reliable, scalable telephony — not experiments. 20 plus years of hands-on engineering. 90 plus Upwork contracts delivered. If your project involves FreeSWITCH, Asterisk, FusionPBX, FreePBX, VICIdial, multi-tenant PBX, LiveKit, AI Voice Agent, answering service platforms, or custom CCaaS development — you are in exactly the right place. CONTACT CENTER AND CCAAS PLATFORM DEVELOPMENT This is my core specialization. I build full contact center platforms from the ground up — inbound and outbound, single-tenant and multi-tenant, on-premise and cloud-hosted. What I build: • Custom CCaaS platforms with agent dashboards, queue management, and real-time analytics • Multi-tenant IP PBX for hosted telephony providers and resellers • Answering service platforms with live agent and automated call handling • Predictive, progressive, and power dialer systems • Inbound ACD with skill-based routing, overflow, and priority queues • Call recording, monitoring, whisper, and barge-in features • Wallboard and supervisor dashboards with live queue stats • CDR reporting, billing integration, and usage analytics • Click-to-call, callback scheduling, and missed call workflows • IVR design, call flow automation, and self-service menus • DID and SIP trunk provisioning for multi-tenant environments • White-label CCaaS platforms for agencies and telcos FREESWITCH AND ASTERISK DEVELOPMENT I work at the infrastructure level — not just configuration, but full custom development. What I build: • FreeSWITCH dialplan development, ESL scripting, and module customization • Asterisk AGI, AMI, and ARI integrations for custom call logic • FusionPBX multi-tenant configuration and custom feature development • FreePBX customization, module development, and third-party integrations • VICIdial installation, customization, campaign management, and API integration • GoAutoDial setup, configuration, and CRM integration • SIP, RTP, and codec troubleshooting at the protocol level • WebRTC softphone integration with FreeSWITCH and Asterisk • High-availability and load-balanced VoIP infrastructure UCAAS AND IPPBX SAAS PLATFORMS What I build: • Hosted UCaaS platforms with voice, video, messaging, and presence • IP PBX SaaS with self-service provisioning and billing • Reseller and white-label PBX platforms for ITSPs • Extension, ring group, and hunt group management • Voicemail, fax-to-email, and call forwarding features • SIP trunk marketplace and DID number management AI VOICE AGENT INTEGRATION I integrate AI voice capabilities into existing contact center and PBX infrastructure — not as a replacement, but as an enhancement layer. What I add to CCaaS platforms: • AI-powered IVR with natural language understanding • Intelligent call routing based on intent detection • AI voice bots for after-hours handling and overflow • OpenAI, Claude, and Gemini integrations with FreeSWITCH and Asterisk • ElevenLabs and Deepgram for voice synthesis and transcription FULL STACK AND INFRASTRUCTURE Backend: Node.js, NestJS, Python FastAPI, Laravel, PostgreSQL, MongoDB, REST APIs, WebSocket, Docker, Linux server management • Frontend: Next.js, React, Vue.js, Bootstrap 5 for CCaaS dashboards and admin panels • DevOps: Linux hardening, Nginx, CI/CD, Asterisk and FreeSWITCH server management, SIP and RTP debugging at tcpdump level WHY CLIENTS CHOOSE ME • 20 plus years engineering contact center, VoIP, and SaaS systems • 90 plus successful Upwork contracts with documented outcomes • I build platforms agencies and telcos sell to their own clients • Production-grade architecture — no shortcuts, no handoffs after delivery • Deep SIP, RTP, and telephony protocol expertise • Honest scoping, clear timelines, and long-term support RECENT WORK • Custom multi-tenant CCaaS platform with agent dashboard and analytics • FreeSWITCH-based AI voice agent with OpenAI Realtime API integration • VICIdial installation and CRM integration for outbound call center • FusionPBX multi-tenant deployment for hosted PBX provider • Answering service platform with live agent and IVR fallback • Telecom ERP with CDR billing, DID provisioning, and reseller management • Next.js supervisor dashboard with real-time queue and agent stats IDEAL PROJECTS • Custom CCaaS platform development • Multi-tenant PBX and UCaaS SaaS builds • AI Voice Agent With MiltiTenant • FreeSWITCH and Asterisk development and customization • FusionPBX and FreePBX configuration and development • VICIdial installation, customization, and API integration • Answering service and contact center platform builds • IP PBX SaaS and infrastructure management • AI voice agent integration into existing PBX systems If you need a telephony architect who builds contact center and VoIP platforms that run real businesses — let us talk.