I will develop linphone voip softphone app with sip, esim and secure calling

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ayomidey4u
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ayomidey4u
Micheal

About this gig

Most VoIP apps fail for one reason: poor SIP implementation and unresolved bugs.

If your VoIP, softphone, or Linphone app is dealing with call drops, registration errors, audio issues, or unstable SIP behavior, I will fix it properly and make it production-ready.

I specialize in VoIP app development and debugging, working with SIP, SIP.js, WebRTC, and Linphone-based systems. Whether you need a new feature or want to stabilize an existing app, I work directly with your code to deliver reliable results.


What I Can Help You With:

  • SIP and SIP.js integration
  • Linphone SDK setup and customization
  • Softphone app development and improvement
  • VoIP bug fixing and debugging
  • Call connection, registration, and audio issues
  • Performance and stability optimization

I focus on identifying the root cause of issues, not just temporary fixesensuring your VoIP system works smoothly under real usage conditions.


Perfect For:

Developers, startups, and businesses building or maintaining VoIP and softphone applications.


Why Choose Me:

  • Strong experience in VoIP technologies
  • Clean, efficient, and tested solutions
  • Clear communication and fast delivery


Please message me before placing an order!

Get to know Micheal

Micheal

VoIP Flutter Solutions Engineered for Real World Performance

  • FromUnited Kingdom
  • Member sinceNov 2025
  • Languages

    English, Italian, Spanish, German, French
I’m a VoIP and Mobile App Developer specializing in Flutter and cloud-driven communication systems. I work with startups and businesses to design and deploy dependable VoIP products and mobile applications built for real-world performance, scalability, and stability. Core expertise • SIP VoIP apps & softphones (Linphone-based) • Cloud VoIP platforms, IVR, and call center systems • Cross-platform Flutter apps (Android & iOS) • Firebase auth, realtime databases, REST API integration • Bulk SMS, call routing, and telecom integrations Message me to discuss better