softphone source code

I'm in need of an experienced developer to design and build a softphone application.

Key Project Requirements:
- As development requirements have not been specified, it is assumed that the application should be compatible across all main operating systems like Windows, MacOS, and Linux.
- Softphone's features weren’t specified, but usually, a robust softphone should have features like call recording, conference calling, and instant messaging.

Ideal Skills and Experience:
- Proven experience in creating effective softphone applications.
- Strong knowledge of cross-platform development.
- Familiarity with voice-over-IP (VoIP) technologies and protocols.

Application Instructions:
Even though not specified, it's generally best to include your past work, detailed project proposal, and relevant experience when applying.

Looking forward to a fruitful collaboration.