I will build a browser calling app or webrtc softphone with react and sip js

H
humayun775
H
humayun775
Humayun Ahmed
build a browser calling app or webrtc softphone with react and sip js
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build a browser calling app or webrtc softphone with react and sip js
Full Screen
build a browser calling app or webrtc softphone with react and sip jsbuild a browser calling app or webrtc softphone with react and sip js

About this gig

Want your users to make and receive calls straight from the browser? I build WebRTC calling apps browser softphones, click-to-call widgets, 1-to-1 and group audio/video with a React front end connected to a real telephony back end.


Unlike front-end-only WebRTC demos, I also handle the server side: FreeSWITCH, Janus Gateway or Asterisk, SIP trunks, TURN servers and NAT, so calls work on real networks, not just localhost.


What I build

Browser softphone with SIP.js / JsSIP: dialpad, contacts, hold, transfer, DTMF, call history

1-to-1 and group audio/video rooms on Janus or FreeSWITCH (mod_verto)

Click-to-call and call-me-back widgets for websites and CRMs

Call recording, voicemail and screen sharing

Authentication, admin dashboard, REST API (Java Spring Boot or Node.js)

Deployment with TURN (coturn), TLS and proper NAT traversal


Stack: React, TypeScript, SIP.js, JsSIP, Janus, FreeSWITCH, Asterisk, WebSocket, coturn, Spring Boot, Node.js, PostgreSQL.


Basic covers a consultation or a fix to your existing WebRTC / SIP.js code. Standard and Premium are full builds with source code. Message me with your use case first and I'll scope it precisely.

  • Programming language

    • JavaScript

  • Expertise

    • Debugging
    • Performance
    • Security
    • Design
    • Databases

  • Frontend framework

    • Next.js
    • React.js
    • Tailwind CSS

  • Backend framework

    • Node.js
    • Spring

Get to know Humayun Ahmed

Humayun Ahmed

VoIP and WebRTC Engineer, FreeSWITCH, Asterisk, Java Spring Boot

5.0(32)
  • FromBangladesh
  • Member sinceAug 2018
  • Avg. response time1 hour
  • Last delivery1 year

  • Languages

    English
Telecom software engineer in Dhaka — I build softswitch and PBX platforms for carriers by day, and have helped Fiverr clients with the same stack since 2018. I set up, fix and extend VoIP systems (FreeSWITCH, FusionPBX, Asterisk, Kamailio) and build WebRTC calling apps with React, SIP.js and Janus, backed by Java Spring Boot or Node.js. 36 orders, 5.0 rating, and I answer within the hour. Tell me the symptom or the goal and I'll tell you exactly what it takes.

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