Asterisk Java & WebRTC Developer

I'm seeking an experienced Asterisk Java developer to implement voice calling functionality with SIP over WebSockets for WebRTC integration. You will also need to fully configure the Asterisk server.

Key Requirements:
- Implement voice calling using Asterisk and Java.
- Integrate WebRTC via SIP over WebSockets.
- Fully configure the Asterisk server.

Ideal Skills and Experience:
- Proficiency in Asterisk and Java.
- Strong knowledge of WebRTC and SIP over WebSockets.
- Experience with Asterisk server configuration.

Please provide relevant work samples and experience.