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  • $30 hourly
    • 4.9/5
    • (21 jobs)
    Are you in need of top-tier IT services to empower your business or project? Look no further! As a highly skilled IT service provider on Upwork, I offer a wide array of technical expertise and solutions to meet your unique needs. With a strong background in the IT industry, I specialize in delivering a range of services that span the entire spectrum of Information Technology. Whether you're a business aiming to strengthen your digital presence, an entrepreneur launching a tech startup, or an individual seeking technical assistance, my expertise is here to drive your success. My services encompass: Software Development: From custom software solutions to mobile applications, I can create tailored software to meet your specific requirements, helping you stay ahead in a competitive digital landscape. Web Design and Development: I design and develop visually appealing, user-friendly websites that not only captivate your audience but also function seamlessly. IT Consulting: Leverage my expertise to make informed decisions about your IT infrastructure, from choosing the right technologies to optimizing your existing systems for efficiency. Network Management: Optimize your network for high performance and reliability, ensuring your data flows smoothly and securely. With a commitment to quality, innovation, and client satisfaction, I am dedicated to delivering results that exceed your expectations. Whether you require a one-time project or ongoing IT support, I'm here to provide the technical expertise you need to thrive in today's digital world. Let's discuss how I can assist you in reaching your IT-related goals and achieving digital excellence. Contact me on Upwork today, and together, we'll unlock the full potential of your digital endeavors!
    Featured Skill Freeswitch
    FreePBX
    OpenSIPS
    VICIDIAL
    VoIP
    Asterisk
    Kamailio
    Lua
    VoIP Software
    Web Development
    FreeSWITCH
    Node.js
    React
    WebRTC
    Mobile App Development
    PHP
  • $45 hourly
    • 4.9/5
    • (55 jobs)
    🔹 Overview / Summary: With over 16 years of hands-on experience in the telecom industry, I specialize in building powerful, scalable, and AI-driven voice solutions tailored to business needs. I am the founder of a successful telecom solutions company and have delivered 100+ enterprise-grade projects worldwide. I help startups, call centers, and SaaS platforms launch and scale intelligent voice platforms—from AI-based IVRs to full-scale FreeSWITCH and WebRTC-powered telephony systems. Whether you’re automating appointment booking via voice, masking phone numbers for Uber/Ola-type apps, or optimizing carrier-grade traffic, I bring real-world expertise that drives measurable outcomes. I’ve helped clients: • Build AI voice agents that handle thousands of daily calls using Rasa + Vosk + FreeSWITCH • Develop secure, scalable SIP platforms for outbound call centers • Deploy containerized telecom stacks (Docker/K8s) with real-time call control • Integrate CRM and calendars (Salesforce, Google Calendar) for real-time voice scheduling • Implement number masking and A2P SMS solutions for B2B SaaS platforms My focus is always on cost-effective, open-source-first, and production-ready solutions with fast turnaround and long-term maintainability. ⸻ 🔹 Services I Offer: • 🔸 AI Voice Bot Development (Appointment Booking, Lead Capture, Call Routing) • 🔸 FreeSWITCH/Asterisk/FusionPBX Setup, Custom Modules & IVR Design • 🔸 Real-Time Voice API Integration (Twilio, Telnyx, Plivo, SIP Providers) • 🔸 CRM & Calendar Integration (Salesforce, HubSpot, Google Calendar API) • 🔸 WebRTC & Click-to-Call Systems for Web/Mobile Apps • 🔸 Call Masking & Smart Number Routing (Uber/Ola Type Use Cases) • 🔸 A2P SMS Platform Design (AI-integrated Messaging for Businesses) • 🔸 Containerized Deployment (Docker, Kubernetes, CI/CD Pipelines) • 🔸 Call Logging, CDR, Analytics Dashboards, and Call Quality Monitoring • 🔸 Security Hardening (TLS/SRTP, Encrypted Webhooks, Role-Based Access) ⸻ 🔹 Tech Stack & Tools: Telephony: FreeSWITCH, Asterisk, FusionPBX, SIP.js, WebRTC AI/NLU: Rasa, Vosk, Kaldi, Botpress Programming: Node.js, Python, Go, Lua (FreeSWITCH modules) Platforms: Twilio, Plivo, Telnyx, Agora, Voximplant Cloud/DevOps: AWS, GCP, Azure, Docker, Kubernetes, GitLab CI/CD Databases: PostgreSQL, Redis, MongoDB APIs: REST, GraphQL, WebSockets CRM Integration: Salesforce, Zoho, HubSpot Monitoring: Prometheus, Grafana, ELK Stack ⸻ 🔹 Experience Highlights / Notable Projects: ✅ AI Voice Booking Agent for Home Services Platform Designed a self-service voice bot using Rasa + Vosk integrated with FreeSWITCH and Google Calendar. Result: 80%+ automation in call handling. ✅ Outbound Call Center with Custom IVR & CRM Sync Built a scalable SIP platform for 200+ agents using FreeSWITCH, integrating with Salesforce and custom lead scoring logic via APIs. ✅ Click-to-Call Widget for SaaS CRM (iframe + SIP.js) Developed a modular SIP.js iframe app for browser-based calling integrated with FusionPBX and REST APIs for click-to-call features. ✅ Number Masking for Uber-type App in LATAM Implemented call masking, call routing, and reporting via FreeSWITCH + Lua + Telnyx SIP, handling 10K+ masked calls daily. ✅ AI-Powered A2P SMS Platform for Nigerian Businesses Designed a communication suite including smart SMS routing, NLP-based autoresponders, and reporting dashboards. ⸻ 🔹 Certifications & Recognition • Certified VoIP Developer (Private Telecom Network) • NLP & AI Chatbot Development – Rasa Certification • Telecom Business Development – Strategic Expansion in LATAM & Africa ⸻ 🔹 Why Choose Me? ✔ Proven experience across 100+ telecom & AI voice projects ✔ Strategic thinker with full-stack delivery capabilities ✔ Strong Upwork record with reliable communication ✔ Quick turnaround, clean code, full documentation ✔ Long-term support and scale-friendly architecture
    Featured Skill Freeswitch
    OpenSIPS
    FreeSWITCH
    3CX
    Artificial Intelligence
    Asterisk
    VICIDIAL
    WebRTC
    MySQL
    AngularJS
    Laravel
    TypeScript
    Node.js
    Twilio API
  • $50 hourly
    • 5.0/5
    • (172 jobs)
    I am consistent "Top Rated Plus" VoIP Developer on Upwork with numerous 5 star reviews including excessively positive feedback. 13+ 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."
    Featured Skill Freeswitch
    MySQL
    OpenSIPS
    FreeSWITCH
    Yii
    PHP
    Kamailio
    Yii2
    API
    VoIP Software
    Asterisk
    MariaDB
    Session Initiation Protocol
    Linux System Administration
    Database Administration
    VoIP Administration
    VoIP
  • $35 hourly
    • 4.8/5
    • (40 jobs)
    1) Free PBX Expert (Installation, Development, Configuration, Technical Support). 2) Fusion PBX Expert (Installation, Development, Configuration, Technical Support) 3) Asterisk Expert (Installation, Development, Configuration, Technical Support). 4) Vicidial Expert (Installation, Development, Configuration, Technical Support). 5) Go Auto Dial Expert (Installation, Development, Configuration, Technical Support). 6) Fop2 Expert (Installation, Development, Configuration, Technical Support). 7) VOIP Expert. 8) IVRS (Design, Development, Configuration, Technical Support). 9) Linux, Mysql Database Expert. 10) Lua Expert. 11) PHP, Mysql, Perl expertise. 12) Rabbit MQ, Redis, Ha proxy Expertise. 13) Freeswitch (Development, Support, Installation) 14) AI / Voice Bot Expert using unimrcp. Projects Handel: 1) IPPBX. 2) Contact Center Solution. 3) SoftSwitch. 4) Autodialer/ Voice Broad Casting System/ Call Back System/Calling Card System. 5) IVRS/Voice Mail /Conference Solution. 6) Voice & SMS Broadcasting System. 7) VOIP Billing Solution. 8) PRI / ISDN/ GSM gateway Integration expert. 10) Solution Design Expert. 11) Architecture Expert. 12) Cloud / On-premises PBX/ contact center / Soft switch Deployment expert.
    Featured Skill Freeswitch
    Linux System Administration
    MySQL
    VICIDIAL
    PHP
    OpenSIPS
    Session Initiation Protocol
    FreePBX
    VoIP Administration
    FreeSWITCH
    Asterisk
  • $58 hourly
    • 4.9/5
    • (50 jobs)
    Experienced mobile app and web app architect, full-stack developer, and DevOps engineer with a proven track record in Linux system administration and VoIP software deployment. Proficient in AWS cloud administration, containerization, Kubernetes, and a wide range of DevOps technologies. Extensive expertise in web app, iOS, and Android app development, specializing in VoIP applications. I thrive on solving complex problems and bring a collaborative spirit to every project. 𝐊𝐞𝐲 𝐒𝐤𝐢𝐥𝐥𝐬: • Mobile App Development: Android and iOS • Full-stack development • Redis, MySQL, PostgreSQL, MongoDB technologies • Node.js ,Tomcat, Nginx, Apache • VoIP Software: Asterisk/FreePBX, Kamailio, Freeswitch • DevOps: Docker, Kubernetes, Rancher, Prometheus, Ansible, Jenkins, Helm charts • AWS, Oracle Cloud Administration • Linux Administration and Shell Scripting • Network Administration • Linux System Deployment and Configuration • Research-Oriented Problem Solver 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬: • Oracle Certified DevOps Professional • Cisco Certified DevNet • Cisco Certified Network Professional • Red Hat Certified System Administrator 𝐈 𝐚𝐦 𝐩𝐚𝐬𝐬𝐢𝐨𝐧𝐚𝐭𝐞 𝐚𝐛𝐨𝐮𝐭 𝐬𝐭𝐚𝐲𝐢𝐧𝐠 𝐮𝐩𝐝𝐚𝐭𝐞𝐝 𝐰𝐢𝐭𝐡 𝐭𝐡𝐞 𝐥𝐚𝐭𝐞𝐬𝐭 𝐭𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 𝐚𝐧𝐝 𝐝𝐞𝐝𝐢𝐜𝐚𝐭𝐞𝐝 𝐭𝐨 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐢𝐧𝐠 𝐡𝐢𝐠𝐡-𝐪𝐮𝐚𝐥𝐢𝐭𝐲 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬. 𝐏𝐥𝐞𝐚𝐬𝐞 𝐧𝐨𝐭𝐞 𝐭𝐡𝐚𝐭 𝐈 𝐩𝐫𝐢𝐨𝐫𝐢𝐭𝐢𝐳𝐞 𝐪𝐮𝐚𝐥𝐢𝐭𝐲 𝐨𝐯𝐞𝐫 𝐪𝐮𝐚𝐧𝐭𝐢𝐭𝐲. 𝐈 𝐩𝐫𝐨𝐯𝐢𝐝𝐞 𝐩𝐫𝐨𝐟𝐞𝐬𝐬𝐢𝐨𝐧𝐚𝐥, 𝐡𝐢𝐠𝐡-𝐪𝐮𝐚𝐥𝐢𝐭𝐲 𝐰𝐨𝐫𝐤 𝐚𝐧𝐝 𝐝𝐨 𝐧𝐨𝐭 𝐚𝐜𝐜𝐞𝐩𝐭 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐭𝐡𝐚𝐭 𝐮𝐧𝐝𝐞𝐫𝐯𝐚𝐥𝐮𝐞 𝐭𝐡𝐞 𝐞𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝐚𝐧𝐝 𝐞𝐟𝐟𝐨𝐫𝐭 𝐫𝐞𝐪𝐮𝐢𝐫𝐞𝐝. 𝐊𝐢𝐧𝐝𝐥𝐲 𝐫𝐞𝐟𝐫𝐚𝐢𝐧 𝐟𝐫𝐨𝐦 𝐢𝐧𝐯𝐢𝐭𝐢𝐧𝐠 𝐦𝐞 𝐭𝐨 𝐥𝐨𝐰-𝐛𝐮𝐝𝐠𝐞𝐭 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬, 𝐚𝐬 𝐈 𝐚𝐦 𝐟𝐨𝐜𝐮𝐬𝐞𝐝 𝐨𝐧 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐢𝐧𝐠 𝐞𝐱𝐜𝐞𝐩𝐭𝐢𝐨𝐧𝐚𝐥 𝐫𝐞𝐬𝐮𝐥𝐭𝐬 𝐟𝐨𝐫 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐰𝐡𝐨 𝐯𝐚𝐥𝐮𝐞 𝐬𝐤𝐢𝐥𝐥 𝐚𝐧𝐝 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞. 𝐓𝐡𝐚𝐧𝐤 𝐲𝐨𝐮 𝐟𝐨𝐫 𝐲𝐨𝐮𝐫 𝐮𝐧𝐝𝐞𝐫𝐬𝐭𝐚𝐧𝐝𝐢𝐧𝐠 𝐚𝐧𝐝 𝐜𝐨𝐧𝐬𝐢𝐝𝐞𝐫𝐚𝐭𝐢𝐨𝐧. 𝐋𝐞𝐭’𝐬 𝐜𝐨𝐥𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐞 𝐭𝐨 𝐛𝐫𝐢𝐧𝐠 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 𝐭𝐨 𝐥𝐢𝐟𝐞!
    Featured Skill Freeswitch
    VoIP Software
    AWS Server Migration
    Ansible
    AWS Lambda
    DevOps
    AWS Development
    FreeSWITCH
    iOS Development
    VoIP Administration
    Kamailio
    Linux System Administration
    Objective-C
    FreePBX
    Cisco Certified Network Professional
    PHP
    Android
    Asterisk
    Oracle Cloud
    Linux
  • $40 hourly
    • 4.6/5
    • (3 jobs)
    With over 15 years of experience in real time communication products, I have a strong expertise on technologies around Kamailio, Freeswitch, OpenSIPS at module level and integrating them with Google Speech APIs, Google Wavenet TTS Service, Amazon Polly service and many more. I have strong hold on building scalable communication platforms and currently focussed on building Conversational-AI applications around Voice. This specifically includes Speech Recognition and Speech Synthesis technologies. With a strong development background and product management experience, I ensure every project to get into a proper productive conclusion
    Featured Skill Freeswitch
    Automatic Speech Recognition
    Kamailio
    FreeSWITCH
    Analytics
    OpenSIPS
    Natural Language Processing
    Elasticsearch
    C++
    WebRTC
  • $50 hourly
    • 5.0/5
    • (18 jobs)
    I am a VoIP professional with over 12 years of experience. I am an expert in Asterisk, Freeswitch, SIP Trunking and provide consultations on these to my clients. Throughout my experience I have designed and developed a number of VoIP, Telecom Solutions like IVR Systems, Autodialers, Conferencing Solutions and Voice Mail solutions from scratch. I develop solutions over multiple programming languages like Javascript (NodeJS), PHP, Java using Asterisk (ARI, AMI and AGI) and Freeswitch (ESL). I also provide support for installation, configuration and maintenance of Asterisk, Freeswitch and other VoIP Switches.
    Featured Skill Freeswitch
    WebRTC
    FreeSWITCH
    Session Initiation Protocol
    Kamailio
    VoIP Software
    Asterisk
    Linux System Administration
    JavaScript
    Node.js
    VoIP Administration
    Twilio API
    PHP
    Web Service
  • $60 hourly
    • 4.8/5
    • (26 jobs)
    Support and development on asterisk, vicidial, goautodial, fusionpbx, freeswitch Linux System Administration ( CentOS, Debian, Ubunut) Database Management (Mysql, PostgreSQL) Network Administration (Router, Switch, Hardware Firewall)
    Featured Skill Freeswitch
    VoIP
    Linux System Administration
    VICIDIAL
    PHP
    MySQL
    FreePBX
    Network Administration
    Android
    A2Billing
    iOS
    FreeSWITCH
    Asterisk
    Customer Relationship Management
    Mobile App
    Session Initiation Protocol
  • $75 hourly
    • 4.9/5
    • (75 jobs)
    I'm a Full Stack Developer specializing in scalable web applications, cloud telephony systems, and AI-powered automation tools. I help startups and businesses streamline operations, elevate customer experiences, and bring innovative, future-ready products to life. 🔧 How I can help you: ✅ Full Stack Web Development (Node.js, React, Next.js, Express) ✅ Cloud Telephony Integration & Development (Freeswitch, Kamailio, Asterisk, Twilio, Plivo, WebRTC, SIP.js) ✅ AI Agent & Chatbot Development (OpenAI APIs, RAG pipelines, custom conversational workflows) ✅ Speech & NLP Solutions (Speech-to-text, text-to-speech, custom NLP models and pipelines) ✅ Scalable Backend Systems (API design, MongoDB, PostgreSQL, Cassandra, cloud deployment) 💡 Why clients love working with me: Fast, clear communication and consistent delivery Clean, scalable, and well-documented code Deep understanding of both technical and business goals Full project ownership — from idea to deployment Whether you're building from scratch or improving an existing product, I’m here to help. Available for both short-term projects and long-term partnerships. Let’s build something impactful.
    Featured Skill Freeswitch
    AI Agent Development
    Database Administration
    Kamailio
    Asterisk
    Twilio API
    VoIP
    JavaScript
    FreePBX
    Session Initiation Protocol
    TypeScript
    Node.js
    VoIP Administration
    FreeSWITCH
    VoIP Software
    WebRTC
  • $75 hourly
    • 5.0/5
    • (2 jobs)
    IoT devices, Home Automation, Built all devices for ADT for their "Blue by ADT" product lines. Open source communication expert. Expose to Unified Communication based on the Cloud. Specialties: Open source PBX, Unified Communication, Cloud computing, Load balancing, Traffic monitoring, Customer interaction
    Featured Skill Freeswitch
    Embedded System
    Industrial Internet of Things
    C
    Real-Time Operating System
    Asterisk
    FreeSWITCH
    C++
    Embedded Linux
    VoIP Software
    ESP32
    Embedded C
    Embedded Application
    Internet of Things Solutions Design
    Audio Engineering
    Python
  • $25 hourly
    • 4.7/5
    • (0 jobs)
    I am an experienced VoIP expert building VoIP web application, VICIdial themes, Programatic Voice Solution using FreeSwitch, Asterisk and WebRTC. I have good command on developing custom made Call Center Solution, PBX as per clients expectation. I have a great knowledge of VICIdial open source platform, FusionPBX, FreePBX and many more. You can consider me expert when it comes to VoIP programatic services and solutions. Illustrating below are my Gigs : FreeSwitch based new or existing development. (Custom or Open source) Asterisk based new or existing development. (Custom or Open source) VICIdial readymade Themes, Installation, Customisation, SVN Upgrade etc. FreePBX & FusionPBX Installation, Customisation and Integration. WebRTC based Application Development and Integration. Sip Softphone for Android and iOS. Call Center Custom Development on FreeSwitch and Asterisk. I am native english speaker and a professional developer who take the work very seriously considering my reputation in front of my clients and delivering values and quality. Please don't hesitate to say "Hello"
    Featured Skill Freeswitch
    Phone Communication
    Lua
    IVR Software
    PBX
    FreePBX
    Softswitch
    OpenSIPS
    VoIP Software
    VoIP PBX
    Call Center Software
    WebRTC
    Asterisk
    VICIDIAL
    FreeSWITCH
    VoIP
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    SUMMARY Highly skilled software engineer with 7 years of experience in developing and maintaining Contact Center Solution System. Proficient in designing robust backend solutions, managing databases, and integrating messaging queues. Expertise in Node.js, PHP, and web server management (Nginx, Apache2). Adept at solution designing to deliver scalable, secure and efficient systems for enterprise applications.
    Featured Skill Freeswitch
    CodeIgniter
    NodeJS Framework
    FreeSWITCH
    Redis
    MySQL
    MongoDB
    Elasticsearch
    Web Application
    Product Development
  • $30 hourly
    • 5.0/5
    • (12 jobs)
    Thanks for your auspicious visit to my Profile. I am Arpit, the CEO and founder of Inextrix Technologies. With 12 years of long experience in VoIP, we have completed 1000+ projects not only specialising in VoIP but IoT Mobile Applications, Web Development and Product Development in each business vertical. Before we were limited to VoIP services but after grabbing immense experience, we successfully launched our Softswitch called ASTPP and propogated across the globe wherein received great success. Today our product reached 96 countries and have 5000+ customer who is actively using our billing software. There are 3 entities under the Inextrix roof and are mentioned below: (SOLUTIONS) 1. ASTPP (Billing Software) 2. ICALLIFY (Omni Channel Contact Centre Solution) 3. Fonimo App (Mobile Sip Dailer can able to integrate with Any system) (SERVICES OFFERING): - PBX (Hosted and IP Both) - SBC( Switch Board Controller) - Cluster Set Up (Support high-end concurrent calls) - Freeswitch-based Development and Customization - Asterisk based on Development and Customization - Opensips based on Development and Customization - Kamailio based on Development and Customization - VICIdial Installation, Customization and offering Themes WebRTC Application Development - Audio & Video Conferencing - WebRTC, Jitsi, Janus, OpenTok, Kurento - Screen Sharing, Recording - Online Tutoring and E-Learning - Telemedicine and Health Applications - Video Broadcasting and Live Streaming - SFU, STUN & Multiple Server architectures VoIP Service: - Asterisk/Freeswitch/OpenSIP/Kamailio setup & Configurations - PBX System & Software Development - Unified Communication Software - CallCenter Softwares - DID Management - Auto/Predictive Dialer - Mobile or Sip or VoIP Dialers - Real-Time billing software - Distributed Server Architecture - Load Balancing and failover setup - Server Administration, Maintenance & 24*7 Support IOS/Android Apps Development: - IoT Based Mobile Applications and Portfolio Available. - Fleet Management Based Application Development - Social Networking - SMS, IM Chat Implementation - Travelling, Navigation, and Weather forecasting Apps - White-labelled VoIP/SIP Dialer - Restaurant, Marketplace, Ecommerce Applications - Real Estate Mobile Apps Development - PWA in React Native Hire Dedicated Resources - Mean Stack - Mern Stack - Dev Oops - Front End - Back End - Quality Analyst - Full Stack - Python Developer - Android Developer - iOS Developer - ReactNative Developer - Data Analyst - UI/UX - Graphics Designer - Business Analyst - Project Manager Website and Web Application Development - Static/dynamic Site Design & Development - PHP, Laravel, Yii2, Codeignetor - Ecommerce Sites - Magento and Shopify - Content Management System - Woo-commerce, WordPress, SquareSpace, Wix - Full Stack Development (Node.js, React, Angular, ReactNative, Vue.js) Approach us today for a free consultation with our expert and see how it goes. You are most welcome to visit our office located in India.
    Featured Skill Freeswitch
    Asterisk
    VoIP PBX
    VoIP Software
    Mobile App Development
    Adobe Photoshop
    FreeSWITCH
    CodeIgniter
    HTML
    PHP
    WordPress Plugin
    WordPress
  • $60 hourly
    • 4.9/5
    • (51 jobs)
    Having 12 years’ experience in Asterisk/OpenSips/Kamailio based application development. With over 6 plus years’ experience in WebRTC development along with 4 years’ experience in Windows development. Below are highlights of the projects and applications worked on: 1. Worked on all the Asterisk configuration changes, which even includes PJSIP. 2. Asterisk Event module (Which handles the request from NodeJS server and handles the events like play greeting, play MOH, Take input field, record greeting, making call, etc. it covers all the features and functionalities of asterisk) 3. Projects which deal with SIP WebRTC Client both Audio & Video. 4. JSON VOIP Client (Audio & Video). This was developed to overcome the loading of heavy SIP stack in browser or mobile. as a result we develop a simple JSON framework to make calls, with a server in the middle that converts to SIP and pushes calls to the asterisk server. 5. Applications for Video conferencing on WebRTC, which supports Peer to Peer in browsers, Android & iOS systems. 6. Applications for Video on WebRTC with SFU (Janus GateWay) in browser, Android & iOS systems. 7. Windows and Mac-based Video Conference applications. In short, we developed an application that is similar to Zoom Meetings. 8. Technologies used for applications like OpenSips/Kamailio only for Proxy, Registrar, and Load Balancing. 9. Worked on C# wpf WebRTC video conferencing service. 10. Worked on C# wpf PJSIP softphone application along with 11. Worked on electron.js with PJSIP softphone application. 12. Microsoft Teams SBC (Call To Teams) 13. SIP to Whatsapp gateway with freeswitch and lineageos on ubuntu with multiple Virtual machines
    Featured Skill Freeswitch
    Tableau
    Session Initiation Protocol
    FreeSWITCH
    Asterisk
    Desktop Application
    React Native
    C++
    Android
    C
    Microsoft Windows
    Swift
    React
    Flutter
    WebRTC
    C#
  • $25 hourly
    • 4.7/5
    • (19 jobs)
    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
    Featured Skill Freeswitch
    Call Center Management
    VICIDIAL
    WebRTC
    iOS
    Android App Development
    VoIP Software
    iOS Development
    FreePBX
    VoIP
    Session Initiation Protocol
    Asterisk
    VoIP Administration
    FreeSWITCH
    WordPress
    PHP
  • $30 hourly
    • 5.0/5
    • (4 jobs)
    I am Gita Maurya having a good exposure in IT industries with 5 years of experience. I have extensive knowledge in Asterisk, VoIP, Telephony, PHP development, WebRTC, AGI Scripting, WordPress, PHP (CI, Yii and Core PHP), AngularJs, NodeJs, System scripts.I am also having very good capability of execution of the project using Scrum Agile methodologies as well to execute the project in a better way with excellent quality and on time delivery. I can Work under pressure, Interested in learning new ways and tools of job. I made all the project with a proper plan, always oriented to success, persistent, organized, respectful, capable to work and solve problems alone or with a team, friendly and proactive. My priority is to deliver high quality software, offer world class support and meet all deadlines. I believe in a simplistic approach with a clean and effective code. My area of interest is also to develop a various kind of application which utilize my skills. I am seeking freelance work from creative and freethinking clients/companies with innovative ideas and approaches that contribute to my professional growth. I have developed various applications with Communication model such as WebRTC as well as Asterisk/VoIP applications based architecture along with PHP as an open source. I work on : • SMS, Voice, Fax Broadcasting solutions • Billing platforms and Business Automation • VOIP PBX and callcenters platforms based on asterisk and freeswitch, Ringcentral • Call center solution • Multi tenant Broadcasting system • WebRTC solutions • Asterisk development • Custom CRM web applications • Embedding Business logic • Developing custom workflows and schedulers • Integration of Third-Party apps through SOAP/ API / REST • Developing custom Reports / Dashboards • Salesforce Development • Portals development and integration
    Featured Skill Freeswitch
    VoIP Software
    VoIP Administration
    FreeSWITCH
    Node.js
    HTML5
    PHP
    Laravel
    CSS 3
    jQuery
    AngularJS
  • $50 hourly
    • 4.8/5
    • (17 jobs)
    I'm a senior C, C++ developer with a passion for working on complex high-performance, and low­ latency systems for telecommunications like own Media Server to Media and Signaling servers like Freeswitch, Kamailio, OpenSIPS, JANUS, Kuranto, and JITSI. Furthermore, I started working on AI in the last six years and worked on ChatBots and VoiceBots. - Have a perfect experience on NLP/NLU open source and cloud platforms like Google dialog flow and Microsoft Luis. - Create custom Modules of Freesiwtch and JANUS for Google, Amazon, IBM Speech To Text, and Text to Speech for real-time transcribers. - Create Conversational IVR and Voice Translator with the help of Google And Amazon. - Real-Time text-to-speech and speech-to-text with NLP/NLU. - Real-Time translator using Google. - good experience in Server Side audio processing and sending audio to any channel. - Excellent experience on Kaldi, Rasa(NLP, NLU), and Python Wavenet library to train models. ✅ Technical Skills : - Development: C/C++, Python - Opensource: TensorFlow, Rasa, WebRTC, reSIProcate - Technology: SIP, Audio/Video, NLP, NLU, Kaldi, deep speech(Mozilla). - Tools (Master): Wireshark, SIPp - Having enough experience with VoIP library for iOS, Android & Windows in C, and C++. - Having experience in VoIP clients and server development. ✅ Develop for all the platforms you need. We cover: - Web - iOS and Android phones and tablets Develop web apps that work on mobile browsers, e.g., video chats, audio and video calling, and audio-video SDK. We help to plan your product and develop it so that users love it. Work with companies and startups to create new products and improve existing ones. ✅ Have the right processes you know in advance. Ours: 1 - Sales managers are 1st level, software analysts. They clarify your needs. You get 3 results: what users can do - user stories, recommended technologies, and estimate based on previous projects. 2 - Analysts clarify details and draw wireframes. They are mockups of all the pages with clickable buttons. So you can play with your app before it’s developed and make changes for cheap. Based on wireframes, we calculate project time and price estimation. 3 - Designers draw clickable graphic design prototypes. 4 - A team of developers, test engineers, and a project manager develops the product. 5 - The team installs it on your server and helps with app store submission. We do maintenance - part-time work on minor improvements after launch. Write to discuss and estimate your project. We give user stories and recommend technologies for free after a call. Without a call, we can’t do it well, unfortunately. All the right questions in writing would have taken days and still much missed. Answer the same workday. On weekends we rest, but if you have a chance - respond too. So please write to us now :)
    Featured Skill Freeswitch
    React Native
    Session Initiation Protocol
    LLM Prompt Engineering
    LLM Prompt
    Bot Development
    VoIP
    WebRTC
    Kamailio
    OpenSIPS
    FreeSWITCH
    Video Stream
    Swift
    Dialogflow
    Artificial Intelligence
    Node.js
    Kotlin
    C++
  • $30 hourly
    • 4.4/5
    • (9 jobs)
    I have 8 years Experience in WebSite, Mobile Application & Voice over IP protocol server deployment, have knowledge to work with voip based application. customer based licencing, android, ios, window, mac, linux, application deployment. Worked with lot of international clients such as NEC Corp USA. ★ Key Achievements: - Deployment of server and mobile Application of 6000+ user. ★ Logged 5000+ valid defects in Mobile Application and Website. ★ Result-oriented freelancer & Certified Software Test Engineer ★ 8+ years Experience in Agile/Scrum methodologies ★ The apps I have tested are used world wide and also at fortune 500 companies like IRIS, NEC uMobility, MLC BYOD, etc. ★ Hands on Experience of SQL/MS SQL/PSQL for Server Testing. You don't have a clear requirement! No problem, I can still work without it. You are still preparing the specification! No problem, I don't wait for that. You have a budget constraint! No worries, I would fit into it. You don't have any test cases/test plans/documents in place! No problem, that's where I come into the picture. • Give me your application and I'll give you the defects in it • Let me go through your product and I would provide how to proceed with the testing & how effectively your application can be tested. I will come up with the best test cases/comprehensive test plans, important use cases and most importantly unique and incredible application improving and business fetching suggestions. My job just doesn't end here. Once I verify the defects in all major browsers/OS, I log them in whatever format/tool you choose along with the screenshots & videos. I will be there to verify the resolved defects. Being a true professional, I dare to do whatever it takes to make my client's business successful with improved customer conversation. Thanks Ankit Soni
    Featured Skill Freeswitch
    Web Development
    Technical Support
    DevOps
    Telecommunications Engineering
    System Deployment
    Linux System Administration
    Asterisk
    VoIP PBX
    WebRTC
    VICIDIAL
    Web UI
    VoIP Administration
    FreeSWITCH
    API
  • $18 hourly
    • 0.0/5
    • (0 jobs)
    Looking for the projects in VoIP/Chat/Networking of any size - I believe that my 20+ years background in telecom IT & networking will contribute significantly to your project. Have 7+ years experience in system architecture design, implementing and running scalable and fault tolerant carrier grade VoIP systems. Preferred open source components in a core: FreeSwitch, Kamailio, PostgreSQL, Redis, Linphone, QuickBlox, Socket Programming, various WebRTC libs and distributed messaging/queuing systems. Have experience (can read, write code and troubleshoot) in Lua, Python, PHP and JS for scripting, C/C++, stored procedures in SQL. Possess MS degree in applied math, and have deep understanding of data structures, algorithms and complexity. Advanced knowledge of statistics and probability theory. Have designed and implemented scalable VoIP systems for carrier telecoms and retail service providers, featuring advanced real time billing and monitoring systems. Consulted call centers on implementing predictive dialers: choosing right algorithms and strategies to get optimal load for system/network and optimal call distribution to operators. Have experience in designing and implementing various REST API based services for both small and large businesses - two factor authentication systems, high volume voice app systems, conferencing solutions
    Featured Skill Freeswitch
    XMPP
    QuickBlox
    Asterisk
    VoIP Administration
    FreeSWITCH
    Socket Programming
    VoIP Software
    Chatbot Development
    Mobile App Development
    WebRTC
  • $10 hourly
    • 0.0/5
    • (0 jobs)
    SIP, VoIP & WebRTC Expert | AI-Powered Call Solutions Hi, I’m an expert in SIP troubleshooting, VoIP security, and AI-driven call monitoring. I help businesses improve VoIP call quality, debug SIP issues, and automate telecom workflows using AI & Python. 📌 Here’s what I offer: ✔ SIP Debugging & VoIP Troubleshooting (Kamailio, Asterisk, FreeSWITCH) ✔ AI-Powered Speech-to-Text & Sentiment Analysis for Calls ✔ VoIP Security & Compliance (TLS, SRTP, Firewall, Fail2Ban) ✔ WebRTC Integration & SIP Server Deployment (Asterisk, Kamailio) ✔ Python, Bash, Go for VoIP Automation & SIP Log Analysis ✅ Why Hire Me? ✔ Fixed 100+ SIP & VoIP issues for global clients. ✔ Deployed AI-based call transcription & sentiment tracking. ✔ Fast turnaround & strong communication. 📌 Let’s improve your VoIP system today!
    Featured Skill Freeswitch
    C
    Golang
    Bash
    Python
    VoIP
    WebRTC
    AI Speech-to-Text
    FreeSWITCH
    Kamailio
    Asterisk
    OpenSIPS
  • $27 hourly
    • 0.0/5
    • (0 jobs)
    I’m a highly experienced VoIP and web developer with 10 years of expertise in PBX and call center solutions. Whether you need to build a scalable call center system, optimize VoIP infrastructure, or develop a custom PBX solution, I can help. My Expertise: ✅ VoIP Development – Strong knowledge of FreeSWITCH, OpenSIPS for SIP-based communication ✅ Web Technologies – Experienced in Node.js, PHP, JavaScript, jQuery ✅ Database Management – Proficient in PostgreSQL, MySQL, MongoDB ✅ Call Center & PBX Architecture – Expertise in designing and developing robust VoIP infrastructures ✅ Full Project Management – End-to-end development, from planning to deployment
    Featured Skill Freeswitch
    CRM Software
    CRM Development
    Call Center Software
    BPO Call Center
    Call Center Management
    OpenSIPS
    FreeSWITCH
  • $25 hourly
    • 0.0/5
    • (1 job)
    IIT Bhubaneswar graduate with expertise in full-stack development, AI, VoIP, and digital automation. I have successfully delivered high-impact projects for clients worldwide, leveraging React, Node.js, Python, WebRTC, and other cutting-edge technologies. What I Offer: ✅ Scalable Full-Stack Applications (React, Node.js, Python) ✅ AI-Powered Chatbots & Automation (OpenAI GPT, AI Voice Cloning) ✅ VoIP & Cloud Telephony (SIP, IVR, WebRTC, WhatsApp API) ✅ Custom Mobile Apps (Flutter, React Native, Swift, Kotlin) ✅ AI & Digital Marketing Automation Featured Projects: 🟢 Multi-Channel Digital Marketing Platform 📌 Built an automated marketing system integrating WhatsApp, RCS, Instagram, and Voice. 📌 Developed a Team Inbox & Outbound Campaign System. 🛠️ Tech Stack: React, Node.js, WebRTC 🟢 AI-Powered Personalized Video Generator 📌 Created an AI-based election campaign video generator using text-to-speech + voice cloning. 📌 Automated bulk video creation for thousands of candidates. 🛠️ Tech Stack: Python, React, Node.js, AI Voice Cloning 🟢 No-Code AI Chatbot Builder 📌 Developed a drag-and-drop chatbot builder with AI-powered automation. 📌 Integrated GPT, Named Entity Recognition (NER), and Sentiment Analysis. 🛠️ Tech Stack: React, Node.js, OpenAI GPT 🟢 Gamified Online Test App (KBC-Themed) 📌 Designed an interactive quiz app with real-time scoring, leaderboards, and lifelines. 📌 Deployed on iOS & Android for an educational institute. 🛠️ Tech Stack: Flutter, React Native, Swift, Kotlin 🔹 Why Hire Me? 🔹 10+ years of experience in full-stack development & automation 🔹 Proven track record of high-impact solutions for global clients 🔹 Expertise in VoIP, AI, Chatbots, and Digital Marketing 🔹 Dedicated to scalability, performance, and seamless user experience
    Featured Skill Freeswitch
    iOS
    Facebook Business Page
    Instagram API
    Asterisk
    FreeSWITCH
    RCS Technologies TRAXX
    WhatsApp
    Java
    Node.js
    Data Analysis
    Data Science
    Machine Learning
    Python
    React
    Script
  • $35 hourly
    • 4.4/5
    • (112 jobs)
    Over 14+ Yrs experience in VoIP (Asterisk, Freeswitch) & WebRTC Softwares (Jitsi, Janus, Kurento, Wowza) Development, Media Streaming, Server Architectures, Web & Smartphones Applications WebRTC Application Development - Audio & Video Conferencing - WebRTC, Jitsi, Twillio, OpenTok, Kurento - Screen Sharing, Recording - Online Tutoring and E Learning - Telemedicine and Health Applications - Video Broadcasting and Live Streaming - SFU, STUN & Multiple Server architectures VoIP Service: - Asterisk/Freeswitch/OpenSIP/Kamilio setup & Configurations - PBX System & Software Development - Unified Communication Software - CallCenter Softwares - DID Management - Auto/Predictive Dialer - Mobile or Sip or VoIP Dialers - Real Time billing software - Distributed Server Architecture - Load Balancing and failover setup - Server Administration, Maintenance & 24*7 Support IOS/Android Apps Development: - Location Based Applications - GPS Based Application Development - Social Networking - SMS, IM Chat Implementation - Travelling, Navigation, and Weather forecasting Apps - VoIP/SIP Dialer - Restaurant, Marketplace, Ecommerce Applications Website and Web Application Development - Static/dynamic Site design & Development - PHP, Laravel, Yii2 - Ecommerce Sites - Content Management System - Full Stack Development (Node.js, React, Angular, ReactNative, Vue.js) Technology, Platforms and languages expertise: Frontend Web: Angular, React.js, Vue.js, PHP Backend: Java, PHP, Laravel, Node.js, Python Mobile: Swift, native, react native, Kotlin, Electron Others: Websocket, Github, Gitlab, Bitbucket, Jira, auth0, Firebase, Ejabbered Cloud Solution: AWS, Google cloud, Azure, Digital Ocean, Hetzner CI/CD: Gitlab CI, Bamboo CI, Bitbucket CI, Jenkins WebRTC: Native, Kurento, Tokbox, Jitsi, janus, OpenVidu VoIP: Freeswitch, Asterisk, Twillio, Kamilio, FusionPBX, FreePBX, SIPJs Web Server: Nginx, Apache 
    Featured Skill Freeswitch
    Video Stream
    Streaming Platform
    Web Development
    React
    Android App Development
    iOS Development
    Flutter
    Android
    React Native
    Node.js
    VoIP Software
    Asterisk
    FreeSWITCH
    Kamailio
    WebRTC
  • $25 hourly
    • 4.7/5
    • (47 jobs)
    We are working on Asterisk - VoIP solutions since 15 years onwards, we are having vast knowledge of all modules of Asterisk and dialer stuff, and we are also able to do integration with crms, clusters as well as other PBX systems for sending and receiving calls as well. We are experts install and configuring Asterisk, vicidial, Voice Broadcast, A2billing, PBX, Freepbx, Freeswitch, Twillio, Elastix, Advanced IVR, Web-meetme, Cloud Solution using Asterisk, SoundBox Dialer, GoAuto Dialer, Call Centre solutions, Hylafax Solutions, etc .. We are popular as a VoIP open-source development company due to our expertise in building, scaling up, and maintaining the best open-source VoIP solutions. We have a team of VICIDial experts who specialize in this open-source call center software. We provide the development of custom features with source code, add-ons, etc. to add missing functionalities to this contact center solution. As a Leading VICIDial Development Company, Our VICIDial skin development and VICIDial theme customization services are popular due to the transformation of this software with better and enhanced UI and UX elements. We also provide various other VICIDial services to benefit its users. We can modify the dialer as per our client requirements like functionality, reports & custom GUI. We provide call center dialer software on the client-server with source code so you can modify it anytime in the future for your clients. ViciDial custom development * Complete configuration and customization for call centers * Inbound / Outbound strategies 1) Miss call report we can setup 2) Abandonded report 3) Advanced agent performance report 4) Sale history report 5) Agent payment report 6) Billing based on rates 7) Custom dashboard for admin, managers 8) Carrier reports with its hangup status 9) Recording reports based on users, campaign 10) Inbound/Outbound separate custom reports Agent layout changes as per your requirement Trackdrive integration for posting Third party call transfer on single click CRM integration with posting via api Webform posting via API Data adjustment via API Custom webphone for integration Agent reports on same screen Soundboard GUI modifications and integration Asterisk * Installtion & Configuration * Dial Plan Designing * Advanced AGI scripting * System Integration, from small office to carrier-grade * Custom applications * Auto/mass dialing solutions A2Billing * Billing customization * Callback customization * CDR customization * IVR customization * Softphone Integration * Multi owner solution * Reseller solution * Clustering / Backup / Failover / Monitoring * Security / Hardening Trixbox / FreePBX / Elastix * Complete configuration * Customization Social skills: excellent in team, individual, on-site or remotely, relaxed or under stress. Organizational skills: excellent with analyst duties, alone or in a team, with project manager duties, with self-managed time, or with magnetic badge. Useful and cost-effective phone management system planning & designing & installation Expertises in Digium, Sangoma, Openvox and other type of PRI & PSTN Card installation. Connecting Multiple Asterisk Server & Cloud Solution for asterisk
    Featured Skill Freeswitch
    Vtiger Development
    Vtiger
    SuiteCRM
    UX & UI
    GUI Design
    VICIDIAL
    Linux
    VoIP Software
    Asterisk
    A2Billing
    FreeSWITCH
    Session Initiation Protocol
    FreePBX
    Graphic Design
    Web Design
  • $25 hourly
    • 0.0/5
    • (0 jobs)
    I have 6+ experience in VOIP Solution and Development Area. Key Skill:- -VoIP, SIP -Linux & OpenSource Consulting -Asterisk, FreePBX, A2billing -FreeSwitch, ASTPP -Homer(SIP Capture) -SIPP(Stress Testing) -WebRTC -Opensips -Kamailio -RTPproxy, RTPengine -C, C++, PHP, Node.js, MySQL, MongoDB -Raspberry PI My Blog:- asteriskmakeeasy.com
    Featured Skill Freeswitch
    FreeSWITCH
    Asterisk
    MySQL Programming
    Elastix
    Kamailio
    FreePBX
    OpenSIPS
    A2Billing
    Twilio API
    PHP
  • $28 hourly
    • 0.0/5
    • (1 job)
    Highly experienced VoIP & DevOps Engineer with over 10 years of hands-on expertise in building, scaling, and automating resilient infrastructure and telephony platforms. Telephony & Voice Infrastructure: • Expert in Asterisk and FreeSWITCH for building custom VoIP solutions, autodialers, IVRs, SIP trunking, call bridging, and call center systems. • Integrated voicebots, WebRTC endpoints, and real-time monitoring tools. • Automated deployments and configurations for scalable voice infrastructure on cloud or on-prem environments. Linux, Python & MySQL: • Proficient in Linux system administration (Ubuntu, CentOS) for production-grade server management. • Developed automation, maintenance, and monitoring tools in Python. • Extensive experience in MySQL performance tuning, replication, and backup strategies for high availability. DevOps & Cloud-Native Infrastructure: • Designed and deployed Kubernetes clusters (on-prem and cloud) with production-grade HA, RBAC, network policies, and monitoring. • Hands-on with Ceph (CephFS, RBD) for scalable distributed storage. • Experience with Chef and Terraform for infrastructure-as-code and automation. • Built resilient environments using HAProxy and Nginx for load balancing and reverse proxying. • Created reproducible dev/test environments with Vagrant and custom provisioning.
    Featured Skill Freeswitch
    Linux
    Ceph
    Kubernetes
    VICIDIAL
    Terraform
    Asterisk
    FreeSWITCH
    FreePBX
    HAProxy
    Vagrant
    SaltStack
    Consul
    Python
    MySQL
  • $30 hourly
    • 0.0/5
    • (0 jobs)
    I hold more than 15+ years of experience in developing, maintaining and troubleshooting Carrier Grade VoIP Applications and Software. I have had VoIP Solutions deployed in well known telcos throughout the Globe. I can pinpoint the network and architecture related media issues very well and I can give suggestions for scalable and resilient VoIP Application deployment. I hold experience on well known and widely accepted open source VoIP softwares like Asterisk, FreeSWITCH, OpenSIPS, Kamailio, RTPEngine etc. Moreover, I understand the full functioning of Class 4 Softswitch along with Complex Prepaid, Rating and Routing Modules. I am also a Voiceover Artist and give Voiceovers in India-English Accents with Authoritative and Clear Narration. I have published several audiobooks of my own.
    Featured Skill Freeswitch
    HAProxy
    AWS Server Migration
    Asterisk
    NoSQL Database
    FreeSWITCH
    MySQL Programming
    AWS Lambda
    MySQL
    MongoDB
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