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35 INR / hourI am a VoIP and cloud technologies expert with over 12 years of experience specializing in Asterisk, FreePBX, Issabel, Freeswitch,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.Hire devsonie
70 USD / hourOver the last 5 years, I have developed a wide range of VOIP projects. Just a brief introductions of things i have worked on. [Opensips/Kamailio] 1. Developed local and International VoIP network (Termination/Origination) with, along redis as cache database and FreeRadius as AAA Sever. 2. Registrar in Type 5 switch with freeswitch as media server. 3. Opensips-CP/SIREMIS. 4. Symmetric Nat solutions with rtpengine/rtpproxy. [Freeswitch] 1. AutoDialer Supporting more that 5000 CC calls using Multiple freeswitch. 2. Voip network setup using mod_enum,mod_lcr,mod_nibblebill. 3. Freeswitch realtime implementation using lua/mod_xml_curl [Asterisk] 1. Asterisk realtime implementation. 2. AGI/AMI scripts.. 3. Autodialer using pycall. [Free-Dialers] 1. Newfies Dialer 2. IctDialer 3. ViciDialer [Zabbix / Monit] 1. Monitorig of different Servers 2. Setting triggers for different services 3. Generating e-mail notifications on triggers [Languages] 1. Lua 2. GolangHire aqsyounas
10 INR / hourI am a Software Engineer with 4+ years' experience in telecom and web development with following skills: - FreeSWITCH - Django - MySQL - Html - CSS - JavaScript - Python - C Programming I have experience in building IVRS, Telephony solutions and Web development. ThanksHire solomonrajch1
50 USD / hourWe are Team iKcon Infotech!! Above 9 years of Expertise in VoIP Based Products. We majorly deal in below stated products and our focus in customer satisfaction which turns out to be automatic more references. That is the reason what from past years our Completion ratio is above 95% Open Source System * Forwarding Portal * A2Billing * ASTPP * Vicidial * FreePBX * FusionPBX * OpenSIP * Asterisk * Elastix * Forwarding Portal * GoAutodial * Freeswitch VoIP Mobile Dialer * Linphone Any kind of Customization or Development in VoIP Open Source Products. We have our own customized version of A2billing, ASTPP, Vicidial, FusionPBX and more. For more information about iKcon Infotech check our website.Hire iKcon
50 USD / hourAt iKcon Professional Staffing Group, we pride ourselves on our personalized approach to recruitment. We take the time to get to know each of our clients and candidates, learning about their unique needs, goals, and values. This allows us to make strategic, long-lasting placements that benefit both parties. We understand that recruitment can be a time-consuming and challenging process for businesses of all sizes. That's why we strive to make it as easy as possible for our clients. Whether you need a single hire or a team of experts, we'll work closely with you to understand your business goals, create a customized hiring plan, and deliver top talent on-time and on-budget. At iKcon Professional Staffing Group, we're committed to excellence in all that we do. We believe that success comes from building strong relationships, providing exceptional customer service, and maintaining the highest standards of integrity and professionalism. Thank you for considering IPSG for your recruitment needs. We look forward to working with you to help build your dream team.Hire xxIPSGxx
36 USD / hourExperienced Computing Electronic Engineer and Unix-Like SysAdmin, also with turn-key VoIP based platforms (FreeSWITCH, Kazoo/2600hz, Kamailio, OpenSIPS, dSIPRouter). VPN (Wireguard, Zerotier and Strongswan). SignalWire Cloud LaML and Relay Programming (PHP, Python and NodeJS) Telnyx APIHire fmateo05
40 USD / hourHi! I'm a software engineer (mainly Node.js for the last nine years, also Python and Golang from time to time) with about fourteen years of experience, mostly related to VoIP stuff (Asterisk, FreeSWITCH, Kamailio, OpenSIPs, Drachtio and a lot of custom projects). And here's a short list of things I know and meet often in my work: - backend development: JavaScript (Node.js), Python, Golang, PHP - frameworks: Node.js — Express, Fastify, AdonisJS, Nest.js, Python — FastAPI, Golang - Gin - databases: Postgres, MySQL, MongoDB, Redis - ELK stack (Elasticsearch, Logstash, Filebeat, Kibana, Grafana, etc.) - Prometheus - message queues: RabbitMQ, AWS SQS, Redis - VoIP: Asterisk, FreeSWITCH, Kamailio/OpenSIPs, Drachtio, WebRTC - Amazon AWS, GCP - Docker, Kubernetes - Ansible, Chef - Linux - CI/CD stuffHire spmtru
22 USD / hourI am a VoIP Engineer and Full-Stack Developer with hands-on experience in building, deploying, and optimizing modern telecommunication systems and cloud-based communication solutions. I specialize in Asterisk, FreePBX, FreeSWITCH, and 3CX, along with deep expertise in SIP, WebRTC, and real-time voice systems. I have designed and implemented scalable PBX infrastructures, including IVR systems, call routing, SIP trunking, call queues, and failover mechanisms for high-availability environments. On the cloud side, I work extensively with Twilio APIs (Voice & SMS), building automated communication workflows, integrating webhooks, and developing event-driven systems for real-time applications. Core Skills VoIP & PBX Systems Asterisk (Dialplans, AGI, Call Flows) FreePBX (GUI Config, Trunks, IVR) FreeSWITCH (Advanced Routing, Media Handling) 3CX Deployment & Management Protocols & Technologies SIP, RTP, WebRTC SIP Trunking & DID Management NAT Traversal, SBC Concepts Cloud Communication Twilio (Voice, SMS, SIP Trunks) API Integrations & Automation Webhooks & Real-time Events System & Networking Linux Server Administration VoIP Troubleshooting & Debugging Firewall, VPN, and QoS Optimization What I Offer End-to-end VoIP system setup Custom IVR & call flow design Twilio-based automation solutions Secure and scalable deployments Ongoing support & optimization I focus on delivering reliable, efficient, and scalable communication systems with a strong emphasis on performance, security, and long-term maintainability.Hire aqeeelabbas
15 USD / hourI am a skilled VoIP and FreeSWITCH Engineer with over 6 years of experience in managing, troubleshooting, and optimizing telecommunications systems. I specialize in FreeSWITCH configuration, SIP protocols, and call routing solutions. I have worked with international support teams, helping improve service quality and implementing customized/Multi-tenancy VoIP solutions for various clients. I’m passionate about solving complex telephony issues, automating processes, and delivering high-performance communication platforms.Hire elvirovelasquez
10 USD / hourI am a skilled professional with extensive experience in FreeSWITCH, VoIP, and Linux systems. I specialize in setting up, configuring, and managing telecommunication systems, ensuring seamless communication and robust performance. My expertise includes troubleshooting, optimizing system performance, and implementing custom solutions to meet client needs.Hire zikriagulzar5
40 USD / hourHello everyone, I have worked as professional software developer for more than 20 years and have good experiences in: -Asterisk, FreePBX, Vicidial -FreeSwitch, FusionPBX -Kamailio, OpenSIPs -JavaScript, React, Vue, Node.js and HTML/CSS, -WebRTC -PHP/Laravel, MySQL -Linux System Administration -c/c++, rust I'm always working in a friendly environment so that we can make long term business relationship. I feel honored to have a continuously growing list of happy clients with positive feedback on my work.Hire yjjfirst
